CVE-2011-2691 (GCVE-0-2011-2691)
Vulnerability from cvelistv5 – Published: 2011-07-17 20:00 – Updated: 2024-08-06 23:08
VLAI
EPSS
VEX
Summary
The png_err function in pngerror.c in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4 makes a function call using a NULL pointer argument instead of an empty-string argument, which allows remote attackers to cause a denial of service (application crash) via a crafted PNG image.
Severity
6.5 (Medium)
CWE
- n/a
Assigner
References
17 references
Date Public
2011-07-07 00:00
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"product_status:fixed": "1",
"product_status:known_affected": "1",
"source": "Microsoft CSAF VEX",
"status": "final",
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a trav\u00e9s de una imagen PNG creada.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:N/A:P\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.0.0\",\"versionEndExcluding\":\"1.0.55\",\"matchCriteriaId\":\"457596BD-6D1A-4BF6-AB6B-00C015282A5C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.2.0\",\"versionEndExcluding\":\"1.2.45\",\"matchCriteriaId\":\"3E0A4818-9441-4057-BF47-EDC25FC9A3D2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.4.0\",\"versionEndExcluding\":\"1.4.8\",\"matchCriteriaId\":\"66F5725F-4C45-48C1-B31C-7A25E735AE49\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.5.0\",\"versionEndExcluding\":\"1.5.4\",\"matchCriteriaId\":\"25E29B1D-F756-40BE-8419-4224391D8D61\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:14:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BDE52846-24EC-4068-B788-EC7F915FFF11\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8C757774-08E7-40AA-B532-6F705C8F7639\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"036E8A89-7A16-411F-9D31-676313BB7244\"}]}]}],\"references\":[{\"url\":\"http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng%3Ba=commit%3Bh=9dad5e37aef295b4ef8dea39392b652deebc9261\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Mailing 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"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2025-11-21T12:56:41+00:00",
"cve": "CVE-2011-2691",
"id": "CVE-2011-2691",
"initial_release_date": "2011-07-07T00:00:00+00:00",
"product_status:known_not_affected": "6",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "libpng: Crash in png_default_error due to use of NULL Pointer",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-2691.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-02T13:00:05Z",
"cve": "CVE-2011-2691",
"id": "CVE-2011-2691",
"initial_release_date": "2023-02-15T05:52:09Z",
"product_status:known_not_affected": "42",
"product_status:recommended": "205",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2011-2691",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2011-2691.json",
"version": "19"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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