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The consistency check compared against the wrong size and did not handle a first entry that does not fit, so a correctly truncated list failed the assertion.  Any process that resolves names through the library is affected, including long-running processes that reload /etc/resolv.conf on the next query after it changes.  Search domains are commonly written to /etc/resolv.conf from data received over DHCP or from a VPN server, so an attacker on the local network may be able to trigger this without privileges on the target system, subject to validation by the network configuration software."}]},{"artifact":{"id":"c513001c6e67b66e","cpes":["cpe:2.3:a:libc6:libc6:2.43-2ubuntu2.4:*:*:*:*:*:*:*"],"name":"libc6","purl":"pkg:deb/ubuntu/libc6@2.43-2ubuntu2.4?arch=amd64&distro=ubuntu-26.04&upstream=glibc","type":"deb","version":"2.43-2ubuntu2.4","language":"","licenses":["BSD-2-clause","BSD-3-clause-Berkeley","BSD-3-clause-Carnegie","BSD-3-clause-Oracle","BSD-3-clause-WIDE","BSD-like-Spencer","BSL-1.0","CORE-MATH","Carnegie","DEC","FSFAP","GFDL-1.3","GPL-2","GPL-2+","GPL-2+-with-link-exception","GPL-3","GPL-3+","IBM","ISC","Inner-Net","LGPL-2","LGPL-2+","LGPL-2.1","LGPL-2.1+","LGPL-2.1+-with-link-exception","LGPL-3","LGPL-3+","MIT-like-Lord","PCRE","SunPro","Unicode-DFS-2016","Univ-Coimbra","public-domain"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:248e96fd88f5dd707fdffd40a3c509e94053ee80ccc731db005518850acfc9ce","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libc6/copyright","layerID":"sha256:5cac300e390e2fd748b258618f403b7813229929ad6de903b0c52a210a930824","accessPath":"/usr/share/doc/libc6/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libc6:amd64.conffiles","layerID":"sha256:5cac300e390e2fd748b258618f403b7813229929ad6de903b0c52a210a930824","accessPath":"/var/lib/dpkg/info/libc6:amd64.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libc6:amd64.md5sums","layerID":"sha256:5cac300e390e2fd748b258618f403b7813229929ad6de903b0c52a210a930824","accessPath":"/var/lib/dpkg/info/libc6:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"glibc"}]},"matchDetails":[{"fix":{"suggestedVersion":"2.43-2ubuntu2.7"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-8674","versionConstraint":"< 2.43-2ubuntu2.7 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"ubuntu","version":"26.04"},"package":{"name":"glibc","version":"2.43-2ubuntu2.4"},"namespace":"ubuntu:distro:ubuntu:26.04"}}],"vulnerability":{"id":"CVE-2026-8674","fix":{"state":"fixed","versions":["2.43-2ubuntu2.7"],"available":[{"date":"2026-09-17","kind":"advisory","version":"2.43-2ubuntu2.7"}]},"cvss":[],"cwes":[{"cve":"CVE-2026-8674","cwe":"CWE-617","type":"Secondary","source":"3ff69d7a-14f2-4f67-a097-88dee7810d18"}],"epss":[{"cve":"CVE-2026-8674","date":"2026-11-12","epss":0.00315,"percentile":0.24761}],"risk":0.1575,"urls":[],"severity":"Medium","namespace":"ubuntu:distro:ubuntu:26.04","advisories":[],"dataSource":"https://ubuntu.com/security/CVE-2026-8674"},"relatedVulnerabilities":[{"id":"CVE-2026-8674","cvss":[{"type":"Secondary","source":"3ff69d7a-14f2-4f67-a097-88dee7810d18","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.3,"impactScore":3.6,"exploitabilityScore":1.7},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-8674","cwe":"CWE-617","type":"Secondary","source":"3ff69d7a-14f2-4f67-a097-88dee7810d18"}],"epss":[{"cve":"CVE-2026-8674","date":"2026-11-12","epss":0.00315,"percentile":0.24761}],"urls":["https://joshua.hu/fuzzing-glibc-libresolv","https://sourceware.org/bugzilla/show_bug.cgi?id=31026","https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0021","https://sourceware.org/git/?p=glibc.git;a=commit;h=506ea57086bfb9ce3daff1c14246a1cb532aba0a","http://www.openwall.com/lists/oss-security/2026/09/17/4"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-8674","description":"Initializing the DNS stub resolver from an /etc/resolv.conf file, or a LOCALDOMAIN environment variable, whose search list contains a domain of roughly 200 characters or more in the GNU C Library version 2.26 to 2.44 results in an assertion failure which aborts the process.\n\nThe resolver truncates the search list when copying it into the fixed-size _res.defdname buffer, then asserts that the copy is consistent with the full configuration.  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An attacker who can set LANGUAGE in the environment of a program that uses gettext can make it load a message catalog (.mo file) from an arbitrary location in the file system.  A crafted .mo file can crash the program through out-of-range offsets, or supply translations whose format directives do not match the arguments passed by the program.  That causes undefined behaviour in the printf family of functions and may allow arbitrary code execution with the privileges of the program.  The safety of message catalogs relies on them being installed in trusted, read-only locations, and the directory traversal bypasses this.\n\nThe fix for CVE-2014-0475 rejects \"..\" path components in locale names passed to setlocale or taken from the LC_ALL, LC_* and LANG environment variables.  gettext reads LANGUAGE directly and appends each colon-separated entry to the message catalog directory, so that fix did not cover LANGUAGE.\n\nLANGUAGE is only used when the LC_MESSAGES locale is not \"C\", \"C.<encoding>\" or \"POSIX\", so the attacker must also be able to select another installed locale, for example through LANG or LC_ALL.  Exploitation also requires that the attacker can place the crafted file in a location readable by the target program, and that the environment crosses a trust boundary without the program running as AT_SECURE.  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Because trailing IV bytes are\nignored, an attacker who knows one message and tag may forge messages under a\ndifferent IV.\n\nCWE: CWE-125: Out-of-bounds Read\n\nDescription: AES-GCM-SIV copies the caller-supplied IV or nonce into its\ninternal state using a copy whose length is taken from the expected nonce size\nrather than from the length the caller actually provided. When the caller\npasses a shorter IV, the copy reads past the end of the caller's buffer;\nAddressSanitizer confirms a heap out-of-bounds read reached through\nEVP_CipherInit_ex() into ossl_aes_gcm_siv_init(). When the caller passes a\nlonger IV, the implementation silently discards the trailing bytes instead of\nrejecting the length.\n\nThe truncation breaks the binding between the IV and the computed\nauthentication tag. 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Because trailing IV bytes are\nignored, an attacker who knows one message and tag may forge messages under a\ndifferent IV.\n\nCWE: CWE-125: Out-of-bounds Read\n\nDescription: AES-GCM-SIV copies the caller-supplied IV or nonce into its\ninternal state using a copy whose length is taken from the expected nonce size\nrather than from the length the caller actually provided. When the caller\npasses a shorter IV, the copy reads past the end of the caller's buffer;\nAddressSanitizer confirms a heap out-of-bounds read reached through\nEVP_CipherInit_ex() into ossl_aes_gcm_siv_init(). When the caller passes a\nlonger IV, the implementation silently discards the trailing bytes instead of\nrejecting the length.\n\nThe truncation breaks the binding between the IV and the computed\nauthentication tag. An attacker who has observed a message and its tag under\none IV can produce a message and tag that verify under a different IV whose\nfirst bytes match, since the surplus bytes never influence the computation.\nThe message itself is unchanged, so this is a failure of IV commitment rather\nthan a classic existential forgery.\n\nOnly applications that call EVP_CipherInit_ex() (or the equivalent provider\ncipher initialization) with an IV length other than the standard 12 bytes for\nAES-GCM-SIV are affected. The severity is limited because the out-of-bounds\nread is small and attacker-controlled only in length, and the forgery requires\nan unusual IV length choice by the application.\n\nFIPS impact: no\nThe FIPS modules are not affected by this issue, as AES-GCM-SIV is not an\napproved algorithm."}]},{"artifact":{"id":"fb52ff3be9ed36f1","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1ubuntu3.7:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1ubuntu3.7:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1ubuntu3.7:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1ubuntu3.7:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1ubuntu3.7:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1ubuntu3.7:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1ubuntu3.7:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1ubuntu3.7:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1ubuntu3.7:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1ubuntu3.7:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/ubuntu/openssl-provider-legacy@3.5.5-1ubuntu3.7?arch=amd64&distro=ubuntu-26.04&upstream=openssl","type":"deb","version":"3.5.5-1ubuntu3.7","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:248e96fd88f5dd707fdffd40a3c509e94053ee80ccc731db005518850acfc9ce","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:5cac300e390e2fd748b258618f403b7813229929ad6de903b0c52a210a930824","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:5cac300e390e2fd748b258618f403b7813229929ad6de903b0c52a210a930824","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:5cac300e390e2fd748b258618f403b7813229929ad6de903b0c52a210a930824","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-95692","versionConstraint":"none (unknown)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"ubuntu","version":"26.04"},"package":{"name":"openssl","version":"3.5.5-1ubuntu3.7"},"namespace":"ubuntu:distro:ubuntu:26.04"}}],"vulnerability":{"id":"CVE-2026-95692","fix":{"state":"not-fixed","versions":[]},"cvss":[],"cwes":[{"cve":"CVE-2026-95692","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-95692","date":"2026-11-12","epss":0.00211,"percentile":0.11382}],"risk":0.1055,"urls":[],"severity":"Medium","namespace":"ubuntu:distro:ubuntu:26.04","advisories":[],"dataSource":"https://ubuntu.com/security/CVE-2026-95692"},"relatedVulnerabilities":[{"id":"CVE-2026-95692","cvss":[],"cwes":[{"cve":"CVE-2026-95692","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-95692","date":"2026-11-12","epss":0.00211,"percentile":0.11382}],"urls":["https://github.com/openssl/openssl/commit/257a3427aa0ef8d9dd2ef5b3e2d1c021a221b116","https://github.com/openssl/openssl/commit/510872388f5d145cf870868b3d288a23822cb776","https://github.com/openssl/openssl/commit/70a47ac78b6f3be1b22fb1551bd0bfcff4f29613","https://openssl-library.org/news/secadv/20261110.txt"],"severity":"Unknown","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-95692","description":"Issue summary: Setting an AES-GCM-SIV IV shorter than the expected nonce\nlength via EVP_CipherInit_ex() may trigger a heap out-of-bounds read.\nSupplying a longer IV is silently truncated instead of rejected.\n\nImpact summary: An application passing a caller-supplied IV of the wrong\nlength may crash or read beyond its buffer. 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