CVE-2011-2692: canonical ubuntu_linux
Vulnerability summary
CVE-2011-2692 is a high (CVSS 8.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 4.23% chance of exploitation in the next 30 days, higher than 91% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (reference, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 1Timeline
- 17-07-2011PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The png_handle_sCAL function in pngrutil.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 does not properly handle invalid sCAL chunks, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via a crafted PNG image that triggers the reading of uninitialized memory.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
4.23%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.23% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundExploit Reference (sourceforge.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat6 products
- libpng< 2:1.2.7-8.el4
- libpng-debuginfo< 2:1.2.7-8.el4
- libpng-devel< 2:1.2.7-8.el4
- libpng10< 0:1.0.16-9.el4
- libpng10-debuginfo< 0:1.0.16-9.el4
Canonical1 product
- ubuntu_linuxEOL8.04 | 10.04 | 10.10 | 11.04
Debian1 product
- debian_linuxEOL5.0 | 6.0
Fedoraproject1 product
- fedoraEOL14
Libpng1 product
- libpng≥ 1.0.0, < 1.0.55 | ≥ 1.2.0, < 1.2.45 | ≥ 1.4.0, < 1.4.8 | ≥ 1.5.0, < 1.5.4
5 vendors · 10 products
References
34 links- www.mandriva.com/security/advisories?name=MDVSA-2011:151Vendor AdvisoryX Refsource MANDRIVABroken Link
- bugzilla.redhat.com/show_bug.cgi?id=720612X Refsource CONFIRMIssue TrackingPatchThird Party AdvisoryREPORT
Show all 34 references
- libpng.git.sourceforge.net/git/…X Refsource CONFIRM
- lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.htmlVendor AdvisoryX Refsource FEDORAMailing ListThird Party Advisory
- lists.apple.com/archives/Security-announce/2011//Oct/msg00003.htmlVendor AdvisoryX Refsource APPLEMailing ListThird Party Advisory
- lists.apple.com/archives/security-announce/2012/May/msg00001.htmlVendor AdvisoryX Refsource APPLEMailing ListThird Party Advisory