{"cloudlinux": [{"lastseen": "2021-07-28T14:36:06", "description": "- Fix Null pointer deref in X509_issuer_and_serial_hash() (CVE-2021-23841)", "cvss3": {"exploitabilityScore": 2.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 5.9, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-03-03T12:00:00", "type": "cloudlinux", "title": "Fix of CVE:CVE-2021-23841 ", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-23841"], "modified": "2021-03-03T12:00:00", "id": "CLSA-2021:1614885634", "href": "https://repo.cloudlinux.com/centos6-els/updateinfo.xml", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}}], "ubuntucve": [{"lastseen": "2022-08-04T13:22:13", "description": "The OpenSSL public API function X509_issuer_and_serial_hash() attempts to\ncreate a unique hash value based on the issuer and serial number data\ncontained within an X509 certificate. However it fails to correctly handle\nany errors that may occur while parsing the issuer field (which might occur\nif the issuer field is maliciously constructed). This may subsequently\nresult in a NULL pointer deref and a crash leading to a potential denial of\nservice attack. The function X509_issuer_and_serial_hash() is never\ndirectly called by OpenSSL itself so applications are only vulnerable if\nthey use this function directly and they use it on certificates that may\nhave been obtained from untrusted sources. OpenSSL versions 1.1.1i and\nbelow are affected by this issue. Users of these versions should upgrade to\nOpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this\nissue. However OpenSSL 1.0.2 is out of support and no longer receiving\npublic updates. Premium support customers of OpenSSL 1.0.2 should upgrade\nto 1.0.2y. Other users 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 (Affected 1.0.2-1.0.2x).\n\n#### Notes\n\nAuthor| Note \n---|--- \n[mdeslaur](<https://launchpad.net/~mdeslaur>) | edk2 doesn't use the affected function\n", "cvss3": {"exploitabilityScore": 2.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 5.9, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-02-16T00:00:00", "type": "ubuntucve", "title": "CVE-2021-23841", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-23841"], "modified": "2021-02-16T00:00:00", "id": "UB:CVE-2021-23841", "href": "https://ubuntu.com/security/CVE-2021-23841", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}}], "openssl": [{"lastseen": "2023-02-21T17:02:03", "description": " 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.\n", "cvss3": {"exploitabilityScore": 2.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 5.9, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-02-16T00:00:00", "type": "openssl", "title": "Vulnerability in OpenSSL - Null pointer deref in X509_issuer_and_serial_hash() ", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-23841"], "modified": "2021-02-16T00:00:00", "id": "OPENSSL:CVE-2021-23841", "href": "https://www.openssl.org/news/secadv/20210216.txt", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}}], "redhatcve": [{"lastseen": "2023-03-18T08:13:08", "description": "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.\n#### Mitigation\n\nAs per upstream "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." \n\n", "cvss3": {"exploitabilityScore": 2.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 5.9, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-02-18T17:04:17", "type": "redhatcve", "title": "CVE-2021-23841", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-23841"], "modified": "2023-03-18T07:03:40", "id": "RH:CVE-2021-23841", "href": "https://access.redhat.com/security/cve/cve-2021-23841", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}}], "osv": [{"lastseen": "2022-05-11T21:35:57", "description": "The OpenSSL public API function `X509_issuer_and_serial_hash()` attempts to\ncreate a unique hash value based on the issuer and serial number data contained\nwithin an X509 certificate. However it fails to correctly handle any errors\nthat may occur while parsing the issuer field (which might occur if the issuer\nfield is maliciously constructed). This may subsequently result in a NULL\npointer deref and a crash leading to a potential denial of service attack.\n\nThe function `X509_issuer_and_serial_hash()` is never directly called by OpenSSL\nitself so applications are only vulnerable if they use this function directly\nand they use it on certificates that may have been obtained from untrusted\nsources.", "cvss3": {"exploitabilityScore": 2.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 5.9, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-05-01T12:00:00", "type": "osv", "title": "Null pointer deref in `X509_issuer_and_serial_hash()`", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-23841"], "modified": "2021-10-19T22:14:35", "id": "OSV:RUSTSEC-2021-0058", "href": "https://osv.dev/vulnerability/RUSTSEC-2021-0058", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-06-15T00:03:56", "description": "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).", "cvss3": {"exploitabilityScore": 2.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 5.9, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-08-25T20:52:21", "type": "osv", "title": "Integer Overflow in openssl-src", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-23841"], "modified": "2021-08-19T17:35:19", "id": "OSV:GHSA-84RM-QF37-FGC2", "href": "https://osv.dev/vulnerability/GHSA-84rm-qf37-fgc2", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-10-07T18:40:24", "description": "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).", "cvss3": {"exploitabilityScore": 2.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 5.9, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-02-16T17:15:00", "type": "osv", "title": "CVE-2021-23841", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-23841"], "modified": "2022-10-07T16:34:00", "id": "OSV:CVE-2021-23841", "href": "https://osv.dev/vulnerability/CVE-2021-23841", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2022-07-21T08:15:44", "description": "\nIt was discovered that there were two issues in the 1.0 branch of the\nOpenSSL cryptographic system:\n\n\n* [CVE-2021-23840](https://security-tracker.debian.org/tracker/CVE-2021-23840)\nCalls to EVP\\_CipherUpdate, EVP\\_EncryptUpdate and EVP\\_DecryptUpdate may\n overflow the output length argument in some cases where the input length is\n close to the maximum permissable length for an integer on the platform. In\n such cases the return value from the function call will be 1 (indicating\n success), but the output length value will be negative. This could cause\n applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and\n below are affected by this issue. Users of these versions should upgrade to\n OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this\n 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\n to 1.0.2y. Other users 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 (Affected\n 1.0.2-1.0.2x).\n* [CVE-2021-23841](https://security-tracker.debian.org/tracker/CVE-2021-23841)\nThe OpenSSL public API function X509\\_issuer\\_and\\_serial\\_hash() attempts\n to create a unique hash value based on the issuer and serial number data\n contained within an X509 certificate. However it fails to correctly handle\n any errors that may occur while parsing the issuer field (which might occur\n if the issuer field is maliciously constructed). This may subsequently\n result in a NULL pointer deref and a crash leading to a potential\n denial of service attack.\n\n\nFor Debian 9 Stretch, these problems have been fixed in version\n1.0.2u-1~deb9u4. For the equivalent changes for the 1.1 branch, please see\nDLA-2563-1.\n\n\nWe recommend that you upgrade your openssl1.0 packages.\n\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: <https://wiki.debian.org/LTS>\n\n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-02-18T00:00:00", "type": "osv", "title": "openssl1.0 - security update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-23840", "CVE-2021-23841"], "modified": "2022-07-21T05:53:37", "id": "OSV:DLA-2565-1", "href": "https://osv.dev/vulnerability/DLA-2565-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-08-05T05:19:03", "description": "\nIt was discovered that there were two issues in the openssl cryptographic\nsystem:\n\n\n* [CVE-2021-23840](https://security-tracker.debian.org/tracker/CVE-2021-23840)\nCalls to EVP\\_CipherUpdate, EVP\\_EncryptUpdate and EVP\\_DecryptUpdate may\n overflow the output length argument in some cases where the input length is\n close to the maximum permissable length for an integer on the platform. In\n such cases the return value from the function call will be 1 (indicating\n success), but the output length value will be negative. This could cause\n applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and\n below are affected by this issue. Users of these versions should upgrade to\n OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this\n 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\n to 1.0.2y. Other users 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 (Affected\n 1.0.2-1.0.2x).\n* [CVE-2021-23841](https://security-tracker.debian.org/tracker/CVE-2021-23841)\nThe OpenSSL public API function X509\\_issuer\\_and\\_serial\\_hash() attempts\n to create a unique hash value based on the issuer and serial number data\n contained within an X509 certificate. However it fails to correctly handle\n any errors that may occur while parsing the issuer field (which might occur\n if the issuer field is maliciously constructed). This may subsequently\n result in a NULL pointer deref and a crash leading to a potential\n denial of service attack.\n\n\nFor Debian 9 Stretch, these problems have been fixed in version\n1.1.0l-1~deb9u3.\n\n\nWe recommend that you upgrade your openssl packages.\n\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: <https://wiki.debian.org/LTS>\n\n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-02-18T00:00:00", "type": "osv", "title": "openssl - security update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-23840", "CVE-2021-23841"], "modified": "2022-08-05T05:19:02", "id": "OSV:DLA-2563-1", "href": "https://osv.dev/vulnerability/DLA-2563-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-08-10T07:15:50", "description": "\nMultiple vulnerabilities have been discovered in OpenSSL, a Secure\nSockets Layer toolkit. 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{'reference':'openssl-devel-1.1.1k-4.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},\n {'reference':'openssl-libs-1.1.1k-4.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},\n {'reference':'openssl-perl-1.1.1k-4.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}\n ]\n }\n];\n\nvar applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);\nif(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);\n\nvar flag = 0;\nforeach var constraint_array ( constraints ) {\n var repo_relative_urls = NULL;\n if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];\n var enterprise_linux_flag = rhel_repo_urls_has_content_dist_rhel(repo_urls:repo_relative_urls);\n foreach var pkg ( constraint_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(pkg['reference'])) reference = pkg['reference'];\n if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];\n if (!empty_or_null(pkg['sp']) && !enterprise_linux_flag) sp = pkg['sp'];\n if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];\n if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];\n if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];\n if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];\n if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];\n if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];\n if (reference &&\n _release &&\n rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&\n (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&\n rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, 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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. 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Exploit for NULL Pointer Dereference in Openssl
