Buffer overflow in Libpng
CVE-2011-2692
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.
Vulnerability class: Buffer Overflow
EPSS: 0.042 (90.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Libpng
- Canonical Ubuntu_linux — versions 8.04, 10.04, 10.10
- Debian Debian_linux — versions 5.0, 6.0
- Fedoraproject Fedora — versions 14
- N/a — versions n/a
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_SECUNIA, Broken Link, third-party-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Broken Link)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secalert@redhat.com (x_refsource_SECUNIA, Broken Link, third-party-advisory)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, x_refsource_MANDRIVA, Broken Link)
- secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (x_refsource_CONFIRM, Exploit, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- secalert@redhat.com (x_refsource_SECUNIA, Broken Link, third-party-advisory)
Frequently asked questions
- What is CVE-2011-2692?
- CVE-2011-2692 is a high-severity vulnerability in Libpng, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2011-07-17.
- How severe is CVE-2011-2692?
- High severity. CVSS v3 base score is 8.8 out of 10.