A resource leak in gw_backend.c in lighttpd 1.4.56 through 1.4.66 could lead to a denial of service (connection-slot exhaustion) after a large amount of anomalous TCP behavior by clients. It is related to RDHUP mishandling in certain HTTP/1.1 chunked situations. Use of mod_fastcgi is, for example, affected. This is fixed in 1.4.67.
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Supported versions that are affected are 8.4, 9.0 and 9.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Communications Session Border Controller. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Communications Session Border Controller as well as unauthorized update, insert or delete access to some of Oracle Communications Session Border Controller accessible data and unauthorized read access to a subset of Oracle Communications Session Border Controller accessible data. CVSS 3.1 Base Score 7.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector:\n (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H).\n (CVE-2022-23219)\n\n - Vulnerability in the Oracle Communications Cloud Native Core Unified Data Repository product of Oracle Communications (component: Signaling (glibc)). The supported version that is affected is 22.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Communications Cloud Native Core Unified Data Repository. Successful attacks of this vulnerability can result in takeover of Oracle Communications Cloud Native Core Unified Data Repository. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts).\n CVSS Vector:\n (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).\n (CVE-2022-23218)\n\n - Vulnerability in the Oracle Communications Cloud Native Core Policy product of Oracle Communications (component:\n Policy (GNU Libtasn1)). Supported versions that are affected are 22.4.0-22.4.4 and 23.1.0-23.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle Communications Cloud Native Core Policy.\n Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Communications Cloud Native Core Policy accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Communications Cloud Native Core Policy. CVSS 3.1 Base Score 9.1 (Confidentiality and Availability impacts).\n CVSS Vector:\n (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H).\n (CVE-2021-46848)\n\n - Vulnerability in the Oracle Text (LibExpat) component of Oracle Database Server. Supported versions that are affected are 19.3-19.19 and 21.3-21.10. Easily exploitable vulnerability allows low privileged attacker having Create Session, Create Index privilege with network access via Oracle Net to compromise Oracle Text (LibExpat). Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Text (LibExpat). CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector:\n (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).\n (CVE-2022-43680)\n\n - Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Porting (Python)). Supported versions that are affected are 8.59 and 8.60. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of PeopleSoft Enterprise PeopleTools.\n CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).\n (CVE-2022-45061)\n\n - Vulnerability in the Oracle Solaris product of Oracle Systems (component: NSSwitch). Supported versions that are affected are 10 and 11. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise Oracle Solaris. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Solaris, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Solaris accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Solaris. CVSS 3.1 Base Score 4.0 (Integrity and Availability impacts). 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It is related to RDHUP mishandling in certain HTTP/1.1 chunked situations. Use of mod_fastcgi is, for example, affected. This is fixed in 1.4.67.", "cvss3": {}, "published": "2022-10-06T18:17:00", "type": "osv", "title": "CVE-2022-41556", "bulletinFamily": "software", "cvss2": {}, "cvelist": ["CVE-2022-41556"], "modified": "2022-12-03T07:20:12", "id": "OSV:CVE-2022-41556", "href": "https://osv.dev/vulnerability/CVE-2022-41556", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2023-06-28T06:51:14", "description": "\nSeveral vulnerabilities were discovered in lighttpd, a fast webserver\nwith minimal memory footprint.\n\n\n* [CVE-2022-37797](https://security-tracker.debian.org/tracker/CVE-2022-37797)\nAn invalid HTTP request (websocket handshake) may cause a NULL\n pointer dereference in the wstunnel module.\n* [CVE-2022-41556](https://security-tracker.debian.org/tracker/CVE-2022-41556)\nA resource leak in mod\\_fastcgi and mod\\_scgi could lead to a denial\n of service after a large number of bad HTTP requests.\n\n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 1.4.59-1+deb11u2.\n\n\nWe recommend that you upgrade your lighttpd packages.\n\n\nFor the detailed security status of lighttpd please refer to its\nsecurity tracker page at:\n[\\\nhttps://security-tracker.debian.org/tracker/lighttpd](https://security-tracker.debian.org/tracker/lighttpd)\n\n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-09-28T00:00:00", "type": "osv", "title": "lighttpd - 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"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-37797", "CVE-2022-41556"], "modified": "2023-06-28T06:50:30", "id": "OSV:DSA-5243-1", "href": "https://osv.dev/vulnerability/DSA-5243-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "gentoo": [{"lastseen": "2023-06-03T15:07:29", "description": "### Background\n\nLighttpd is a lightweight high-performance web server.\n\n### Description\n\nLighttpd's mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received.\n\n### Impact\n\nAn attacker can trigger a denial of service via making Lighttpd try to call an uninitialized function pointer.\n\n### Workaround\n\nThere is no known workaround at this time.\n\n### Resolution\n\nAll lighttpd users should upgrade to the latest version:\n \n \n # emerge --sync\n # emerge --ask --oneshot --verbose \">=www-servers/lighttpd-1.4.67\"", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-10-31T00:00:00", "type": "gentoo", "title": "Lighttpd: Denial of Service", "bulletinFamily": "unix", "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"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-37797", "CVE-2022-41556"], "modified": "2022-10-31T00:00:00", "id": "GLSA-202210-12", "href": "https://security.gentoo.org/glsa/202210-12", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "mageia": [{"lastseen": "2023-06-03T15:12:48", "description": "In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received. It leads to null pointer dereference which crashes the server. It could be used by an external attacker to cause denial of service condition. (CVE-2022-37797) A resource leak in mod_fastcgi and mod_scgi could lead to a denial of service after a large number of bad HTTP requests. (CVE-2022-41556) \n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-10-13T20:05:19", "type": "mageia", "title": "Updated lighttpd packages fix security vulnerability\n", "bulletinFamily": "unix", "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"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-37797", "CVE-2022-41556"], "modified": "2022-10-13T20:05:19", "id": "MGASA-2022-0369", "href": "https://advisories.mageia.org/MGASA-2022-0369.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "debian": [{"lastseen": "2023-06-03T22:11:25", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-5243-1 security@debian.org\nhttps://www.debian.org/security/ Helmut Grohne\nSeptember 28, 2022 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : lighttpd\nCVE ID : CVE-2022-37797 CVE-2022-41556\n\nSeveral vulnerabilities were discovered in lighttpd, a fast webserver\nwith minimal memory footprint.\n\nCVE-2022-37797\n\n An invalid HTTP request (websocket handshake) may cause a NULL\n pointer dereference in the wstunnel module.\n\nCVE-2022-41556\n\n A resource leak in mod_fastcgi and mod_scgi could lead to a denial\n of service after a large number of bad HTTP requests.\n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 1.4.59-1+deb11u2.\n\nWe recommend that you upgrade your lighttpd packages.\n\nFor the detailed security status of lighttpd please refer to its\nsecurity tracker page at:\nhttps://security-tracker.debian.org/tracker/lighttpd\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-09-28T16:05:19", "type": "debian", "title": "[SECURITY] [DSA 5243-1] lighttpd security update", "bulletinFamily": "unix", "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"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-37797", "CVE-2022-41556"], "modified": "2022-09-28T16:05:19", "id": "DEBIAN:DSA-5243-1:A6710", "href": "https://lists.debian.org/debian-security-announce/2022/msg00212.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "ubuntu": [{"lastseen": "2023-07-21T16:47:01", "description": "## Releases\n\n * Ubuntu 22.10 \n * Ubuntu 22.04 LTS\n * Ubuntu 20.04 LTS\n\n## Packages\n\n * lighttpd \\- fast webserver with minimal memory footprint\n\nIt was discovered that lighttpd incorrectly handled certain inputs, which could \nresult in a stack buffer overflow. A remote attacker could possibly use this \nissue to cause a denial of service (DoS). (CVE-2022-22707, CVE-2022-41556)\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-02-28T00:00:00", "type": "ubuntu", "title": "lighttpd vulnerabilities", "bulletinFamily": "unix", "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"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-22707", "CVE-2022-41556"], "modified": "2023-02-28T00:00:00", "id": "USN-5903-1", "href": "https://ubuntu.com/security/notices/USN-5903-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}]}
CVE-2022-41556
