EulerOS 2.0 SP9 : shim (EulerOS-SA-2021-2542)

2021-09-27T00:00:00

Description

According to the versions of the shim packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread. This would result in an incorrect text display of the certificate. This bug has been present since 2006 and is present in all versions of OpenSSL before 1.0.2m and 1.1.0g. (CVE-2017-3735) - OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an 'error state' mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would immediately fail if you attempted to continue the handshake. This works as designed for the explicit handshake functions (SSL_do_handshake(), SSL_accept() and SSL_connect()), however due to a bug it does not work correctly if SSL_read() or SSL_write() is called directly. In that scenario, if the handshake fails then a fatal error will be returned in the initial function call. If SSL_read()/SSL_write() is subsequently called by the application for the same SSL object then it will succeed and the data is passed without being decrypted/encrypted directly from the SSL/TLS record layer. In order to exploit this issue an application bug would have to be present that resulted in a call to SSL_read()/SSL_write() being issued after having already received a fatal error. OpenSSL version 1.0.2b-1.0.2m are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is not affected. (CVE-2017-3737) - During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o). (CVE-2018-0732) - The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o). (CVE-2018-0737) - Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n). (CVE-2018-0739) - In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s). (CVE-2019-1563) - The X.509 GeneralName type is a generic type for representing different types of names. One of those name types is known as EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME to see if they are equal or not. This function behaves incorrectly when both GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash may occur leading to a possible denial of service attack. OpenSSL itself uses the GENERAL_NAME_cmp function for two purposes: 1) Comparing CRL distribution point names between an available CRL and a CRL distribution point embedded in an X509 certificate 2) When verifying that a timestamp response token signer matches the timestamp authority name (exposed via the API functions TS_RESP_verify_response and TS_RESP_verify_token) If an attacker can control both items being compared then that attacker could trigger a crash. For example if the attacker can trick a client or server into checking a malicious certificate against a malicious CRL then this may occur. Note that some applications automatically download CRLs based on a URL embedded in a certificate. This checking happens prior to the signatures on the certificate and CRL being verified. OpenSSL's s_server, s_client and verify tools have support for the '-crl_download' option which implements automatic CRL downloading and this attack has been demonstrated to work against those tools. Note that an unrelated bug means that affected versions of OpenSSL cannot parse or construct correct encodings of EDIPARTYNAME. However it is possible to construct a malformed EDIPARTYNAME that OpenSSL's parser will accept and hence trigger this attack. All OpenSSL 1.1.1 and 1.0.2 versions are affected by this issue. Other OpenSSL releases are out of support and have not been checked. Fixed in OpenSSL 1.1.1i (Affected 1.1.1-1.1.1h). Fixed in OpenSSL 1.0.2x (Affected 1.0.2-1.0.2w). (CVE-2020-1971) - Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23840) - The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23841) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

{"id": "EULEROS_SA-2021-2542.NASL", "vendorId": null, "type": "nessus", "bulletinFamily": "scanner", "title": "EulerOS 2.0 SP9 : shim (EulerOS-SA-2021-2542)", "description": "According to the versions of the shim packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :\n\n - While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread. This would result in an incorrect text display of the certificate. This bug has been present since 2006 and is present in all versions of OpenSSL before 1.0.2m and 1.1.0g. (CVE-2017-3735)\n\n - OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an 'error state' mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would immediately fail if you attempted to continue the handshake. This works as designed for the explicit handshake functions (SSL_do_handshake(), SSL_accept() and SSL_connect()), however due to a bug it does not work correctly if SSL_read() or SSL_write() is called directly. In that scenario, if the handshake fails then a fatal error will be returned in the initial function call. If SSL_read()/SSL_write() is subsequently called by the application for the same SSL object then it will succeed and the data is passed without being decrypted/encrypted directly from the SSL/TLS record layer. In order to exploit this issue an application bug would have to be present that resulted in a call to SSL_read()/SSL_write() being issued after having already received a fatal error. OpenSSL version 1.0.2b-1.0.2m are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is not affected. (CVE-2017-3737)\n\n - During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o). (CVE-2018-0732)\n\n - The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o). (CVE-2018-0737)\n\n - Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n). (CVE-2018-0739)\n\n - In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s). (CVE-2019-1563)\n\n - The X.509 GeneralName type is a generic type for representing different types of names. One of those name types is known as EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME to see if they are equal or not. This function behaves incorrectly when both GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash may occur leading to a possible denial of service attack. OpenSSL itself uses the GENERAL_NAME_cmp function for two purposes: 1) Comparing CRL distribution point names between an available CRL and a CRL distribution point embedded in an X509 certificate 2) When verifying that a timestamp response token signer matches the timestamp authority name (exposed via the API functions TS_RESP_verify_response and TS_RESP_verify_token) If an attacker can control both items being compared then that attacker could trigger a crash. For example if the attacker can trick a client or server into checking a malicious certificate against a malicious CRL then this may occur. Note that some applications automatically download CRLs based on a URL embedded in a certificate. This checking happens prior to the signatures on the certificate and CRL being verified.\n OpenSSL's s_server, s_client and verify tools have support for the '-crl_download' option which implements automatic CRL downloading and this attack has been demonstrated to work against those tools. Note that an unrelated bug means that affected versions of OpenSSL cannot parse or construct correct encodings of EDIPARTYNAME. However it is possible to construct a malformed EDIPARTYNAME that OpenSSL's parser will accept and hence trigger this attack. All OpenSSL 1.1.1 and 1.0.2 versions are affected by this issue.\n Other OpenSSL releases are out of support and have not been checked. Fixed in OpenSSL 1.1.1i (Affected 1.1.1-1.1.1h). Fixed in OpenSSL 1.0.2x (Affected 1.0.2-1.0.2w). (CVE-2020-1971)\n\n - Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash.\n OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i).\n Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23840)\n\n - The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23841)\n\nNote that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.", "published": "2021-09-27T00:00:00", "modified": "2022-05-09T00:00:00", "cvss": {"score": 5, "vector": "AV:N/AC:L/Au:N/C:N/I:P/A:N"}, "cvss2": {}, "cvss3": {"score": 5.9, "vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}, "href": "https://www.tenable.com/plugins/nessus/153738", "reporter": "This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.", "references": ["http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0739", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23840", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23841", "http://www.nessus.org/u?efbac3b1", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0737", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1563", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0732", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3735", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3737", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1971"], "cvelist": ["CVE-2017-3735", "CVE-2017-3737", "CVE-2018-0732", "CVE-2018-0737", "CVE-2018-0739", "CVE-2019-1563", "CVE-2020-1971", "CVE-2021-23840", "CVE-2021-23841"], "immutableFields": [], "lastseen": "2022-05-10T03:21:12", "viewCount": 2, "enchantments": {"dependencies": {"references": [{"type": "aix", "idList": ["OPENSSL_ADVISORY24.ASC", "OPENSSL_ADVISORY25.ASC", "OPENSSL_ADVISORY26.ASC", "OPENSSL_ADVISORY27.ASC", "OPENSSL_ADVISORY28.ASC", "OPENSSL_ADVISORY31.ASC", "OPENSSL_ADVISORY32.ASC", "OPENSSL_ADVISORY33.ASC"]}, {"type": "almalinux", "idList": ["ALSA-2020:5476", "ALSA-2021:4198", "ALSA-2021:4424"]}, {"type": "amazon", "idList": ["ALAS-2018-1000", "ALAS-2018-1016", "ALAS-2018-1065", "ALAS-2018-1069", "ALAS-2018-1070", "ALAS-2018-1098", "ALAS-2018-1102", "ALAS-2020-1344", "ALAS-2020-1456", "ALAS-2021-1482", "ALAS2-2018-1004", "ALAS2-2018-1102", "ALAS2-2020-1406", "ALAS2-2020-1456", "ALAS2-2020-1573", "ALAS2-2021-1608", "ALAS2-2021-1612"]}, {"type": "apple", "idList": ["APPLE:8592A5882F33472850FF959BB2667129", "APPLE:B08BBADEFC88806E12CB234F1EB6C4C6", "APPLE:B7AA5B9368DE4BD135A602B017EB0259", "APPLE:CABE34499864F4FA47751E5A9FCC58AC", "APPLE:HT208331"]}, {"type": "archlinux", "idList": ["ASA-201711-14", "ASA-201711-15", "ASA-201712-11", "ASA-201712-9", "ASA-201804-2", "ASA-202012-24", "ASA-202102-42"]}, {"type": "avleonov", "idList": ["AVLEONOV:101A90D5F21CD7ACE01781C2913D1B6D"]}, {"type": "centos", "idList": ["CESA-2018:0998", "CESA-2018:3090", "CESA-2018:3221", "CESA-2020:5566", "CESA-2021:3798"]}, {"type": "checkpoint_advisories", "idList": ["CPAI-2017-0740", "CPAI-2019-0250"]}, {"type": "cloudfoundry", "idList": ["CFOUNDRY:177BD11FEDF3F89426E99286BC7DC46B", "CFOUNDRY:5EA35272975027EBFB62DFE2535B7B4B", "CFOUNDRY:78350CC978808A6C42CDCB2451BF30F4", "CFOUNDRY:79AEA0CB72178344BEE07C9B9FEA86F0", "CFOUNDRY:9243E8457D02CBA7A3505CB1E0E03739", "CFOUNDRY:B1BFB1BD3BA9A90D6CA66F05AB2DCBAE", "CFOUNDRY:BCFE0333C3F2E89FFDF11615D117C9AF", "CFOUNDRY:BDB6F8275A06CC11A9EB2C43CBB82E42"]}, {"type": "cloudlinux", "idList": ["CLSA-2020:1608724134", "CLSA-2021:1614885634", "CLSA-2021:1632261785", "CLSA-2021:1632262317"]}, {"type": "cve", "idList": ["CVE-2017-15896", "CVE-2017-3735", "CVE-2017-3737", "CVE-2018-0732", "CVE-2018-0737", "CVE-2018-0739", "CVE-2019-1563", "CVE-2020-1971", "CVE-2021-23840", "CVE-2021-23841"]}, {"type": "debian", "idList": ["DEBIAN:DLA-1157-1:16CF2", "DEBIAN:DLA-1157-1:FA549", "DEBIAN:DLA-1330-1:A6756", "DEBIAN:DLA-1449-1:6B9AF", "DEBIAN:DLA-1449-1:EF247", "DEBIAN:DLA-1932-1:82F68", "DEBIAN:DLA-1932-1:8690A", "DEBIAN:DLA-2492-1:77952", "DEBIAN:DLA-2493-1:D2596", "DEBIAN:DLA-2563-1:7D5FC", "DEBIAN:DLA-2563-1:B363B", "DEBIAN:DLA-2565-1:2FCB7", "DEBIAN:DLA-2565-1:CC1A3", "DEBIAN:DSA-4017-1:88D36", "DEBIAN:DSA-4017-1:AEF53", "DEBIAN:DSA-4018-1:01441", "DEBIAN:DSA-4018-1:DD3DF", "DEBIAN:DSA-4065-1:A75E5", "DEBIAN:DSA-4157-1:5A16B", "DEBIAN:DSA-4157-1:D7BEA", "DEBIAN:DSA-4158-1:43C61", "DEBIAN:DSA-4158-1:561AF", "DEBIAN:DSA-4348-1:05673", "DEBIAN:DSA-4355-1:1415E", "DEBIAN:DSA-4539-1:42F6F", "DEBIAN:DSA-4540-1:F4ED8", "DEBIAN:DSA-4807-1:1C1CB", "DEBIAN:DSA-4807-1:B0537", "DEBIAN:DSA-4855-1:4A0C0", "DEBIAN:DSA-4855-1:B091B"]}, {"type": "debiancve", "idList": ["DEBIANCVE:CVE-2017-15896", "DEBIANCVE:CVE-2017-3735", "DEBIANCVE:CVE-2017-3737", "DEBIANCVE:CVE-2018-0732", "DEBIANCVE:CVE-2018-0737", "DEBIANCVE:CVE-2018-0739", "DEBIANCVE:CVE-2019-1563", "DEBIANCVE:CVE-2020-1971", "DEBIANCVE:CVE-2021-23840", "DEBIANCVE:CVE-2021-23841"]}, {"type": "f5", "idList": ["F5:K08044291", "F5:K18364001", "F5:K21462542", "F5:K21665601", "F5:K24624116", "F5:K42910051", "F5:K43429502", "F5:K43452233", "F5:K97324400"]}, {"type": "fedora", "idList": ["FEDORA:0240B604B381", "FEDORA:08AC0606CFA2", "FEDORA:3ED26601CEE3", 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{"nessus": [{"lastseen": "2022-05-10T03:20:23", "description": "According to the versions of the shim package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :\n\n - While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread. This would result in an incorrect text display of the certificate. This bug has been present since 2006 and is present in all versions of OpenSSL before 1.0.2m and 1.1.0g. (CVE-2017-3735)\n\n - OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an 'error state' mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would immediately fail if you attempted to continue the handshake. This works as designed for the explicit handshake functions (SSL_do_handshake(), SSL_accept() and SSL_connect()), however due to a bug it does not work correctly if SSL_read() or SSL_write() is called directly. In that scenario, if the handshake fails then a fatal error will be returned in the initial function call. If SSL_read()/SSL_write() is subsequently called by the application for the same SSL object then it will succeed and the data is passed without being decrypted/encrypted directly from the SSL/TLS record layer. In order to exploit this issue an application bug would have to be present that resulted in a call to SSL_read()/SSL_write() being issued after having already received a fatal error. OpenSSL version 1.0.2b-1.0.2m are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is not affected. (CVE-2017-3737)\n\n - During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o). (CVE-2018-0732)\n\n - The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o). (CVE-2018-0737)\n\n - Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n). (CVE-2018-0739)\n\n - In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s). (CVE-2019-1563)\n\n - The X.509 GeneralName type is a generic type for representing different types of names. One of those name types is known as EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME to see if they are equal or not. This function behaves incorrectly when both GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash may occur leading to a possible denial of service attack. OpenSSL itself uses the GENERAL_NAME_cmp function for two purposes: 1) Comparing CRL distribution point names between an available CRL and a CRL distribution point embedded in an X509 certificate 2) When verifying that a timestamp response token signer matches the timestamp authority name (exposed via the API functions TS_RESP_verify_response and TS_RESP_verify_token) If an attacker can control both items being compared then that attacker could trigger a crash. For example if the attacker can trick a client or server into checking a malicious certificate against a malicious CRL then this may occur. Note that some applications automatically download CRLs based on a URL embedded in a certificate. This checking happens prior to the signatures on the certificate and CRL being verified.\n OpenSSL's s_server, s_client and verify tools have support for the '-crl_download' option which implements automatic CRL downloading and this attack has been demonstrated to work against those tools. Note that an unrelated bug means that affected versions of OpenSSL cannot parse or construct correct encodings of EDIPARTYNAME. However it is possible to construct a malformed EDIPARTYNAME that OpenSSL's parser will accept and hence trigger this attack. All OpenSSL 1.1.1 and 1.0.2 versions are affected by this issue.\n Other OpenSSL releases are out of support and have not been checked. Fixed in OpenSSL 1.1.1i (Affected 1.1.1-1.1.1h). Fixed in OpenSSL 1.0.2x (Affected 1.0.2-1.0.2w). (CVE-2020-1971)\n\n - Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash.\n OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i).\n Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23840)\n\n - The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23841)\n\nNote that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. 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This would result in an incorrect text display of the certificate. This bug has been present since 2006 and is present in all versions of OpenSSL before 1.0.2m and 1.1.0g. (CVE-2017-3735)\n\n - OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an 'error state' mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would immediately fail if you attempted to continue the handshake. This works as designed for the explicit handshake functions (SSL_do_handshake(), SSL_accept() and SSL_connect()), however due to a bug it does not work correctly if SSL_read() or SSL_write() is called directly. In that scenario, if the handshake fails then a fatal error will be returned in the initial function call. If SSL_read()/SSL_write() is subsequently called by the application for the same SSL object then it will succeed and the data is passed without being decrypted/encrypted directly from the SSL/TLS record layer. In order to exploit this issue an application bug would have to be present that resulted in a call to SSL_read()/SSL_write() being issued after having already received a fatal error. OpenSSL version 1.0.2b-1.0.2m are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is not affected. (CVE-2017-3737)\n\n - During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o). (CVE-2018-0732)\n\n - The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o). (CVE-2018-0737)\n\n - Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n). (CVE-2018-0739)\n\n - In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s). (CVE-2019-1563)\n\n - The X.509 GeneralName type is a generic type for representing different types of names. One of those name types is known as EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME to see if they are equal or not. This function behaves incorrectly when both GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash may occur leading to a possible denial of service attack. OpenSSL itself uses the GENERAL_NAME_cmp function for two purposes: 1) Comparing CRL distribution point names between an available CRL and a CRL distribution point embedded in an X509 certificate 2) When verifying that a timestamp response token signer matches the timestamp authority name (exposed via the API functions TS_RESP_verify_response and TS_RESP_verify_token) If an attacker can control both items being compared then that attacker could trigger a crash. For example if the attacker can trick a client or server into checking a malicious certificate against a malicious CRL then this may occur. Note that some applications automatically download CRLs based on a URL embedded in a certificate. This checking happens prior to the signatures on the certificate and CRL being verified.\n OpenSSL's s_server, s_client and verify tools have support for the '-crl_download' option which implements automatic CRL downloading and this attack has been demonstrated to work against those tools. Note that an unrelated bug means that affected versions of OpenSSL cannot parse or construct correct encodings of EDIPARTYNAME. However it is possible to construct a malformed EDIPARTYNAME that OpenSSL's parser will accept and hence trigger this attack. All OpenSSL 1.1.1 and 1.0.2 versions are affected by this issue.\n Other OpenSSL releases are out of support and have not been checked. Fixed in OpenSSL 1.1.1i (Affected 1.1.1-1.1.1h). Fixed in OpenSSL 1.0.2x (Affected 1.0.2-1.0.2w). (CVE-2020-1971)\n\n - Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash.\n OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i).\n Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23840)\n\n - The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23841)\n\n - ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL (0) byte. Although not a strict requirement, ASN.1 strings that are parsed using OpenSSL's own 'd2i' functions (and other similar parsing functions) as well as any string whose value has been set with the ASN1_STRING_set() function will additionally NUL terminate the byte array in the ASN1_STRING structure. However, it is possible for applications to directly construct valid ASN1_STRING structures which do not NUL terminate the byte array by directly setting the 'data' and 'length' fields in the ASN1_STRING array. This can also happen by using the ASN1_STRING_set0() function. Numerous OpenSSL functions that print ASN.1 data have been found to assume that the ASN1_STRING byte array will be NUL terminated, even though this is not guaranteed for strings that have been directly constructed. Where an application requests an ASN.1 structure to be printed, and where that ASN.1 structure contains ASN1_STRINGs that have been directly constructed by the application without NUL terminating the 'data' field, then a read buffer overrun can occur. The same thing can also occur during name constraints processing of certificates (for example if a certificate has been directly constructed by the application instead of loading it via the OpenSSL parsing functions, and the certificate contains non NUL terminated ASN1_STRING structures). It can also occur in the X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. If a malicious actor can cause an application to directly construct an ASN1_STRING and then process it through one of the affected OpenSSL functions then this issue could be hit. This might result in a crash (causing a Denial of Service attack).\n It could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext). Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k). Fixed in OpenSSL 1.0.2za (Affected 1.0.2-1.0.2y). (CVE-2021-3712)\n\nNote that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. 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However, it is possible for\n applications to directly construct valid ASN1_STRING structures which do not NUL terminate the byte array\n by directly setting the 'data' and 'length' fields in the ASN1_STRING array. This can also happen by using\n the ASN1_STRING_set0() function. Numerous OpenSSL functions that print ASN.1 data have been found to\n assume that the ASN1_STRING byte array will be NUL terminated, even though this is not guaranteed for\n strings that have been directly constructed. Where an application requests an ASN.1 structure to be\n printed, and where that ASN.1 structure contains ASN1_STRINGs that have been directly constructed by the\n application without NUL terminating the 'data' field, then a read buffer overrun can occur. The same thing\n can also occur during name constraints processing of certificates (for example if a certificate has been\n directly constructed by the application instead of loading it via the OpenSSL parsing functions, and the\n certificate contains non NUL terminated ASN1_STRING structures). It can also occur in the\n X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. If a malicious actor can cause an\n application to directly construct an ASN1_STRING and then process it through one of the affected OpenSSL\n functions then this issue could be hit. This might result in a crash (causing a Denial of Service attack).\n It could also result in the disclosure of private memory contents (such as private keys, or sensitive\n plaintext). Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k). Fixed in OpenSSL 1.0.2za (Affected\n 1.0.2-1.0.2y). (CVE-2021-3712)\n\nNote that Tenable Network Security has extracted the preceding description block directly from the EulerOS security\nadvisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional\nissues.\");\n # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-2758\n script_set_attribute(attribute:\"see_also\", value:\"http://www.nessus.org/u?d01aa3fc\");\n script_set_attribute(attribute:\"solution\", value:\n\"Update the affected shim packages.\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:P\");\n script_set_cvss_temporal_vector(\"CVSS2#E:U/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:U/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-3712\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"No known exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"false\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2017/08/28\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/11/17\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/11/17\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:huawei:euleros:shim\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:huawei:euleros:uvp:2.9.1\");\n script_set_attribute(attribute:\"stig_severity\", value:\"I\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Huawei Local Security Checks\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"ssh_get_info.nasl\");\n script_require_keys(\"Host/local_checks_enabled\", \"Host/cpu\", \"Host/EulerOS/release\", \"Host/EulerOS/rpm-list\", \"Host/EulerOS/uvp_version\");\n\n exit(0);\n}\n\ninclude(\"rpm.inc\");\n\nif (!get_kb_item(\"Host/local_checks_enabled\")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);\n\nvar release = get_kb_item(\"Host/EulerOS/release\");\nif (isnull(release) || release !~ \"^EulerOS\") audit(AUDIT_OS_NOT, \"EulerOS\");\nvar uvp = get_kb_item(\"Host/EulerOS/uvp_version\");\nif (uvp != \"2.9.1\") audit(AUDIT_OS_NOT, \"EulerOS Virtualization 2.9.1\");\nif (!get_kb_item(\"Host/EulerOS/rpm-list\")) audit(AUDIT_PACKAGE_LIST_MISSING);\n\nvar cpu = get_kb_item(\"Host/cpu\");\nif (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);\nif (\"x86_64\" >!< cpu && cpu !~ \"^i[3-6]86$\" && \"aarch64\" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, \"EulerOS\", cpu);\nif (\"aarch64\" >!< cpu) audit(AUDIT_ARCH_NOT, \"aarch64\", cpu);\n\nvar flag = 0;\n\nvar pkgs = [\n \"shim-15-19.h7.eulerosv2r9\"\n];\n\nforeach (var pkg in pkgs)\n if (rpm_check(release:\"EulerOS-2.0\", reference:pkg)) flag++;\n\nif (flag)\n{\n security_report_v4(\n port : 0,\n severity : SECURITY_WARNING,\n extra : rpm_report_get()\n );\n exit(0);\n}\nelse\n{\n var tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, \"shim\");\n}\n", "cvss": {"score": 5.8, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2022-08-07T15:05:15", "description": "According to the versions of the shim package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :\n\n - While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread. This would result in an incorrect text display of the certificate. This bug has been present since 2006 and is present in all versions of OpenSSL before 1.0.2m and 1.1.0g. (CVE-2017-3735)\n\n - OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an 'error state' mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would immediately fail if you attempted to continue the handshake. This works as designed for the explicit handshake functions (SSL_do_handshake(), SSL_accept() and SSL_connect()), however due to a bug it does not work correctly if SSL_read() or SSL_write() is called directly. In that scenario, if the handshake fails then a fatal error will be returned in the initial function call. If SSL_read()/SSL_write() is subsequently called by the application for the same SSL object then it will succeed and the data is passed without being decrypted/encrypted directly from the SSL/TLS record layer. In order to exploit this issue an application bug would have to be present that resulted in a call to SSL_read()/SSL_write() being issued after having already received a fatal error. OpenSSL version 1.0.2b-1.0.2m are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is not affected. (CVE-2017-3737)\n\n - During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o). (CVE-2018-0732)\n\n - The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o). (CVE-2018-0737)\n\n - Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n). (CVE-2018-0739)\n\n - In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s). (CVE-2019-1563)\n\n - The X.509 GeneralName type is a generic type for representing different types of names. One of those name types is known as EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME to see if they are equal or not. This function behaves incorrectly when both GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash may occur leading to a possible denial of service attack. OpenSSL itself uses the GENERAL_NAME_cmp function for two purposes: 1) Comparing CRL distribution point names between an available CRL and a CRL distribution point embedded in an X509 certificate 2) When verifying that a timestamp response token signer matches the timestamp authority name (exposed via the API functions TS_RESP_verify_response and TS_RESP_verify_token) If an attacker can control both items being compared then that attacker could trigger a crash. For example if the attacker can trick a client or server into checking a malicious certificate against a malicious CRL then this may occur. Note that some applications automatically download CRLs based on a URL embedded in a certificate. This checking happens prior to the signatures on the certificate and CRL being verified.\n OpenSSL's s_server, s_client and verify tools have support for the '-crl_download' option which implements automatic CRL downloading and this attack has been demonstrated to work against those tools. Note that an unrelated bug means that affected versions of OpenSSL cannot parse or construct correct encodings of EDIPARTYNAME. However it is possible to construct a malformed EDIPARTYNAME that OpenSSL's parser will accept and hence trigger this attack. All OpenSSL 1.1.1 and 1.0.2 versions are affected by this issue.\n Other OpenSSL releases are out of support and have not been checked. Fixed in OpenSSL 1.1.1i (Affected 1.1.1-1.1.1h). Fixed in OpenSSL 1.0.2x (Affected 1.0.2-1.0.2w). (CVE-2020-1971)\n\n - Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash.\n OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i).\n Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23840)\n\n - The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23841)\n\n - ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL (0) byte. Although not a strict requirement, ASN.1 strings that are parsed using OpenSSL's own 'd2i' functions (and other similar parsing functions) as well as any string whose value has been set with the ASN1_STRING_set() function will additionally NUL terminate the byte array in the ASN1_STRING structure. However, it is possible for applications to directly construct valid ASN1_STRING structures which do not NUL terminate the byte array by directly setting the 'data' and 'length' fields in the ASN1_STRING array. This can also happen by using the ASN1_STRING_set0() function. Numerous OpenSSL functions that print ASN.1 data have been found to assume that the ASN1_STRING byte array will be NUL terminated, even though this is not guaranteed for strings that have been directly constructed. Where an application requests an ASN.1 structure to be printed, and where that ASN.1 structure contains ASN1_STRINGs that have been directly constructed by the application without NUL terminating the 'data' field, then a read buffer overrun can occur. The same thing can also occur during name constraints processing of certificates (for example if a certificate has been directly constructed by the application instead of loading it via the OpenSSL parsing functions, and the certificate contains non NUL terminated ASN1_STRING structures). It can also occur in the X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. If a malicious actor can cause an application to directly construct an ASN1_STRING and then process it through one of the affected OpenSSL functions then this issue could be hit. This might result in a crash (causing a Denial of Service attack).\n It could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext). Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k). Fixed in OpenSSL 1.0.2za (Affected 1.0.2-1.0.2y). (CVE-2021-3712)\n\nNote that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. 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(CVE-2021-23840)\n\n - The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based\n on the issuer and serial number data contained within an X509 certificate. However it fails to correctly\n handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is\n maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a\n potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by\n OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on\n certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are\n affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x\n and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving\n public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should\n upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected\n 1.0.2-1.0.2x). (CVE-2021-23841)\n\n - ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a\n buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings\n which are repesented as a buffer for the string data which is terminated with a NUL (0) byte. Although not\n a strict requirement, ASN.1 strings that are parsed using OpenSSL's own 'd2i' functions (and other similar\n parsing functions) as well as any string whose value has been set with the ASN1_STRING_set() function will\n additionally NUL terminate the byte array in the ASN1_STRING structure. However, it is possible for\n applications to directly construct valid ASN1_STRING structures which do not NUL terminate the byte array\n by directly setting the 'data' and 'length' fields in the ASN1_STRING array. This can also happen by using\n the ASN1_STRING_set0() function. Numerous OpenSSL functions that print ASN.1 data have been found to\n assume that the ASN1_STRING byte array will be NUL terminated, even though this is not guaranteed for\n strings that have been directly constructed. Where an application requests an ASN.1 structure to be\n printed, and where that ASN.1 structure contains ASN1_STRINGs that have been directly constructed by the\n application without NUL terminating the 'data' field, then a read buffer overrun can occur. The same thing\n can also occur during name constraints processing of certificates (for example if a certificate has been\n directly constructed by the application instead of loading it via the OpenSSL parsing functions, and the\n certificate contains non NUL terminated ASN1_STRING structures). It can also occur in the\n X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. If a malicious actor can cause an\n application to directly construct an ASN1_STRING and then process it through one of the affected OpenSSL\n functions then this issue could be hit. This might result in a crash (causing a Denial of Service attack).\n It could also result in the disclosure of private memory contents (such as private keys, or sensitive\n plaintext). Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k). Fixed in OpenSSL 1.0.2za (Affected\n 1.0.2-1.0.2y). 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One of those name types is known as EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME to see if they are equal or not. This function behaves incorrectly when both GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash may occur leading to a possible denial of service attack. OpenSSL itself uses the GENERAL_NAME_cmp function for two purposes: 1) Comparing CRL distribution point names between an available CRL and a CRL distribution point embedded in an X509 certificate 2) When verifying that a timestamp response token signer matches the timestamp authority name (exposed via the API functions TS_RESP_verify_response and TS_RESP_verify_token) If an attacker can control both items being compared then that attacker could trigger a crash. For example if the attacker can trick a client or server into checking a malicious certificate against a malicious CRL then this may occur. Note that some applications automatically download CRLs based on a URL embedded in a certificate.\n This checking happens prior to the signatures on the certificate and CRL being verified. OpenSSL's s_server, s_client and verify tools have support for the '-crl_download' option which implements automatic CRL downloading and this attack has been demonstrated to work against those tools. Note that an unrelated bug means that affected versions of OpenSSL cannot parse or construct correct encodings of EDIPARTYNAME. However it is possible to construct a malformed EDIPARTYNAME that OpenSSL's parser will accept and hence trigger this attack. All OpenSSL 1.1.1 and 1.0.2 versions are affected by this issue. Other OpenSSL releases are out of support and have not been checked. Fixed in OpenSSL 1.1.1i (Affected 1.1.1-1.1.1h). Fixed in OpenSSL 1.0.2x (Affected 1.0.2-1.0.2w).(CVE-2020-1971)\n\n - Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue.\n Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y.\n Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).(CVE-2021-23840)\n\n - The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue.\n However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).(CVE-2021-23841)\n\nNote that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. 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One of those\n name types is known as EDIPartyName. OpenSSL provides a\n function GENERAL_NAME_cmp which compares different\n instances of a GENERAL_NAME to see if they are equal or\n not. This function behaves incorrectly when both\n GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer\n dereference and a crash may occur leading to a possible\n denial of service attack. OpenSSL itself uses the\n GENERAL_NAME_cmp function for two purposes: 1)\n Comparing CRL distribution point names between an\n available CRL and a CRL distribution point embedded in\n an X509 certificate 2) When verifying that a timestamp\n response token signer matches the timestamp authority\n name (exposed via the API functions\n TS_RESP_verify_response and TS_RESP_verify_token) If an\n attacker can control both items being compared then\n that attacker could trigger a crash. For example if the\n attacker can trick a client or server into checking a\n malicious certificate against a malicious CRL then this\n may occur. Note that some applications automatically\n download CRLs based on a URL embedded in a certificate.\n This checking happens prior to the signatures on the\n certificate and CRL being verified. OpenSSL's s_server,\n s_client and verify tools have support for the\n '-crl_download' option which implements automatic CRL\n downloading and this attack has been demonstrated to\n work against those tools. Note that an unrelated bug\n means that affected versions of OpenSSL cannot parse or\n construct correct encodings of EDIPARTYNAME. However it\n is possible to construct a malformed EDIPARTYNAME that\n OpenSSL's parser will accept and hence trigger this\n attack. All OpenSSL 1.1.1 and 1.0.2 versions are\n affected by this issue. Other OpenSSL releases are out\n of support and have not been checked. Fixed in OpenSSL\n 1.1.1i (Affected 1.1.1-1.1.1h). 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OpenSSL\n versions 1.0.2x and below are affected by this issue.\n However OpenSSL 1.0.2 is out of support and no longer\n receiving public updates. Premium support customers of\n OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users\n should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j\n (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y\n (Affected 1.0.2-1.0.2x).(CVE-2021-23841)\n\nNote that Tenable Network Security has extracted the preceding\ndescription block directly from the EulerOS security advisory. Tenable\nhas attempted to automatically clean and format it as much as possible\nwithout introducing additional issues.\");\n # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-2154\n script_set_attribute(attribute:\"see_also\", value:\"http://www.nessus.org/u?1214fa9a\");\n script_set_attribute(attribute:\"solution\", value:\n\"Update the affected openssl packages.\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P\");\n script_set_cvss_temporal_vector(\"CVSS2#E:U/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:U/RL:O/RC:C\");\n script_set_attribute(attribute:\"exploitability_ease\", value:\"No known exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"false\");\n\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/07/06\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/07/06\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:huawei:euleros:openssl\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:huawei:euleros:openssl-libs\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:huawei:euleros:uvp:3.0.2.2\");\n script_set_attribute(attribute:\"generated_plugin\", value:\"current\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Huawei Local Security Checks\");\n\n script_copyright(english:\"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"ssh_get_info.nasl\");\n script_require_keys(\"Host/local_checks_enabled\", \"Host/cpu\", \"Host/EulerOS/release\", \"Host/EulerOS/rpm-list\", \"Host/EulerOS/uvp_version\");\n\n exit(0);\n}\n\ninclude(\"audit.inc\");\ninclude(\"global_settings.inc\");\ninclude(\"rpm.inc\");\n\nif (!get_kb_item(\"Host/local_checks_enabled\")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);\n\nrelease = get_kb_item(\"Host/EulerOS/release\");\nif (isnull(release) || release !~ \"^EulerOS\") audit(AUDIT_OS_NOT, \"EulerOS\");\nuvp = get_kb_item(\"Host/EulerOS/uvp_version\");\nif (uvp != \"3.0.2.2\") audit(AUDIT_OS_NOT, \"EulerOS Virtualization 3.0.2.2\");\nif (!get_kb_item(\"Host/EulerOS/rpm-list\")) audit(AUDIT_PACKAGE_LIST_MISSING);\n\ncpu = get_kb_item(\"Host/cpu\");\nif (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);\nif (\"x86_64\" >!< cpu && cpu !~ \"^i[3-6]86$\" && \"aarch64\" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, \"EulerOS\", cpu);\nif (\"x86_64\" >!< cpu && cpu !~ \"^i[3-6]86$\") audit(AUDIT_ARCH_NOT, \"i686 / x86_64\", cpu);\n\nflag = 0;\n\npkgs = [\"openssl-1.0.2k-16.h13.eulerosv2r7\",\n \"openssl-libs-1.0.2k-16.h13.eulerosv2r7\"];\n\nforeach (pkg in pkgs)\n if (rpm_check(release:\"EulerOS-2.0\", reference:pkg)) flag++;\n\nif (flag)\n{\n security_report_v4(\n port : 0,\n severity : SECURITY_WARNING,\n extra : rpm_report_get()\n );\n exit(0);\n}\nelse\n{\n tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, \"openssl\");\n}\n", "cvss": {"score": 5, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-08-09T15:25:36", "description": "The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has openssl packages installed that are affected by multiple vulnerabilities:\n\n - While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread.\n This would result in an incorrect text display of the certificate. This bug has been present since 2006 and is present in all versions of OpenSSL before 1.0.2m and 1.1.0g. (CVE-2017-3735)\n\n - Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.\n (CVE-2018-0495)\n\n - OpenSSL RSA key generation was found to be vulnerable to cache side-channel attacks. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover parts of the private key. (CVE-2018-0737)\n\n - Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g).\n Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n).\n (CVE-2018-0739)\n\n - A microprocessor side-channel vulnerability was found on SMT (e.g, Hyper-Threading) architectures. An attacker running a malicious process on the same core of the processor as the victim process can extract certain secret information. (CVE-2018-5407)\n\n - During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o). (CVE-2018-0732)\n\nNote that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.", "cvss3": {"score": 5.9, "vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}, "published": "2019-08-12T00:00:00", "type": "nessus", "title": "NewStart CGSL CORE 5.04 / MAIN 5.04 : openssl Multiple Vulnerabilities (NS-SA-2019-0065)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2017-3735", "CVE-2018-0495", "CVE-2018-0732", "CVE-2018-0737", "CVE-2018-0739", "CVE-2018-5407"], "modified": "2022-05-19T00:00:00", "cpe": [], "id": "NEWSTART_CGSL_NS-SA-2019-0065_OPENSSL.NASL", "href": "https://www.tenable.com/plugins/nessus/127262", "sourceData": "#%NASL_MIN_LEVEL 70300\n#\n# (C) Tenable Network Security, Inc.\n#\n\n# The descriptive text and package checks in this plugin were\n# extracted from ZTE advisory NS-SA-2019-0065. 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However it fails to correctly\n handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is\n maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a\n potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by\n OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on\n certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are\n affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x\n and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving\n public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should\n upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected\n 1.0.2-1.0.2x). (CVE-2021-23841)\n\nNote that Nessus has not tested for this issue but has instead relied only on the application's self-reported version\nnumber.\");\n script_set_attribute(attribute:\"see_also\", value:\"https://linux.oracle.com/errata/ELSA-2021-4424.html\");\n script_set_attribute(attribute:\"solution\", value:\n\"Update the affected packages.\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P\");\n script_set_cvss_temporal_vector(\"CVSS2#E:U/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:U/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-23840\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"No known exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"false\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/02/16\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/11/16\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/11/17\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:oracle:linux:8\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:oracle:linux:openssl\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:oracle:linux:openssl-devel\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:oracle:linux:openssl-libs\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:oracle:linux:openssl-perl\");\n script_set_attribute(attribute:\"stig_severity\", value:\"I\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Oracle Linux Local Security Checks\");\n\n script_copyright(english:\"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"ssh_get_info.nasl\");\n script_require_keys(\"Host/OracleLinux\", \"Host/RedHat/release\", \"Host/RedHat/rpm-list\", \"Host/local_checks_enabled\");\n\n exit(0);\n}\n\n\ninclude('audit.inc');\ninclude('global_settings.inc');\ninclude('rpm.inc');\n\nif (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);\nif (!get_kb_item('Host/OracleLinux')) audit(AUDIT_OS_NOT, 'Oracle Linux');\nvar release = get_kb_item(\"Host/RedHat/release\");\nif (isnull(release) || !pregmatch(pattern: \"Oracle (?:Linux Server|Enterprise Linux)\", string:release)) audit(AUDIT_OS_NOT, 'Oracle Linux');\nvar os_ver = pregmatch(pattern: \"Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\\.[0-9]+)?)\", string:release);\nif (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');\nvar os_ver = os_ver[1];\nif (! preg(pattern:\"^8([^0-9]|$)\", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 8', 'Oracle Linux ' + os_ver);\n\nif (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);\n\nvar cpu = get_kb_item('Host/cpu');\nif (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);\nif ('x86_64' >!< cpu && cpu !~ \"^i[3-6]86$\" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);\n\nvar pkgs = [\n {'reference':'openssl-1.1.1k-4.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},\n {'reference':'openssl-1.1.1k-4.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},\n {'reference':'openssl-devel-1.1.1k-4.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},\n {'reference':'openssl-devel-1.1.1k-4.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},\n {'reference':'openssl-devel-1.1.1k-4.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},\n {'reference':'openssl-libs-1.1.1k-4.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},\n {'reference':'openssl-libs-1.1.1k-4.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},\n {'reference':'openssl-libs-1.1.1k-4.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},\n {'reference':'openssl-perl-1.1.1k-4.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},\n {'reference':'openssl-perl-1.1.1k-4.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}\n];\n\nvar flag = 0;\nforeach var package_array ( pkgs ) {\n var reference = NULL;\n var release = NULL;\n var sp = NULL;\n var cpu = NULL;\n var el_string = NULL;\n var rpm_spec_vers_cmp = NULL;\n var epoch = NULL;\n var allowmaj = NULL;\n var exists_check = NULL;\n if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];\n if (!empty_or_null(package_array['release'])) release = 'EL' + package_array['release'];\n if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];\n if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];\n if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];\n if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];\n if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];\n if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];\n if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];\n if (reference && release) {\n if (exists_check) {\n if (rpm_exists(release:release, rpm:exists_check) && rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;\n } else {\n if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;\n }\n }\n}\n\nif (flag)\n{\n security_report_v4(\n port : 0,\n severity : SECURITY_WARNING,\n extra : rpm_report_get()\n );\n exit(0);\n}\nelse\n{\n var tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'openssl / openssl-devel / openssl-libs / etc');\n}\n", "cvss": {"score": 5, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-07-12T14:49:23", "description": "This update for openssl fixes the following issues :\n\nCVE-2021-23840: Fixed an Integer overflow in CipherUpdate (bsc#1182333)\n\nCVE-2021-23841: Fixed a NULL pointer dereference in X509_issuer_and_serial_hash() (bsc#1182331)\n\nNote that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.", "cvss3": {"score": 7.5, "vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}, "publishe

EulerOS 2.0 SP9 : shim (EulerOS-SA-2021-2542)

Description

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