CVE-2023-24056

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:pkgconf:pkgconf:*:*:*:*:*:*:*:*", "matchCriteriaId": "1C4610C3-CF01-473F-9ED6-BE94F0DC71D5", "versionEndIncluding": "1.9.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In pkgconf through 1.9.3, variable duplication can cause unbounded string expansion due to incorrect checks in libpkgconf/tuple.c:pkgconf_tuple_parse. For example, a .pc file containing a few hundred bytes can expand to one billion bytes."}, {"lang": "es", "value": "En pkgconf hasta 1.9.3, la duplicaci\u00f3n de variables puede causar una expansi\u00f3n ilimitada de cadenas debido a comprobaciones incorrectas en libpkgconf/tuple.c:pkgconf_tuple_parse. Por ejemplo, un archivo .pc que contiene unos pocos cientos de bytes puede expandirse hasta mil millones de bytes."}], "id": "CVE-2023-24056", "lastModified": "2026-06-17T05:38:34.310", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-24056", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-02T15:42:36.457176Z", "version": "2.0.3"}}]}, "published": "2023-01-22T04:15:11.617", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://gitea.treehouse.systems/ariadne/pkgconf/commit/628b2b2bafa5d3a2017193ddf375093e70666059"}, {"source": "cve@mitre.org", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/pkgconf/pkgconf/tags"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://nullprogram.com/blog/2023/01/18/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://gitea.treehouse.systems/ariadne/pkgconf/commit/628b2b2bafa5d3a2017193ddf375093e70666059"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/pkgconf/pkgconf/tags"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://nullprogram.com/blog/2023/01/18/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-787"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "pkgconf: unbounded string expansion due to incorrect checks may result in buffer overflow", "id": "2165034", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2165034"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-119", "details": ["In pkgconf through 1.9.3, variable duplication can cause unbounded string expansion due to incorrect checks in libpkgconf/tuple.c:pkgconf_tuple_parse. For example, a .pc file containing a few hundred bytes can expand to one billion bytes.", "A flaw was found in pkgconf, where a variable duplication can cause unbounded string expansion due to incorrect checks in libpkgconf/tuple.c:pkgconf_tuple_parse. This issue may lead to a buffer overflow, which can crash the software."], "name": "CVE-2023-24056", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "pkgconf", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "pkgconf", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2023-01-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-24056\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-24056\nhttps://nullprogram.com/blog/2023/01/18/"], "statement": "pkgconf is a program which helps to configure compiler and linker flags for development libraries, & this security flaw can only crash while compiling/building a package in a development environment, hence that provides a very minimal Impact. Also Red Hat Enterprise Linux 8 and 9 provide the stack protector in gcc, FORTIFY_SOURCE in glibc to protect against heap based overflows.\n- https://access.redhat.com/solutions/769783", "threat_severity": "Low"}

{}