CVE-2011-2692 Memory corruption in n/a
Remote attackers can cause denial of service or potential code execution via crafted PNG images due to improper handling of invalid sCAL chunks in libpng.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2011-2692?
CVE-2011-2692 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 17 Jul 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-119
Which versions are affected by CVE-2011-2692?
It affects 4 products.
Linux distribution packages (24)
libpng Red Hat:enterprise_linux:4::as | All versions | 2:1.2.7-8.el4 |
libpng-debuginfo Red Hat:enterprise_linux:4::as | All versions | 2:1.2.7-8.el4 |
libpng-devel Red Hat:enterprise_linux:4::as | All versions | 2:1.2.7-8.el4 |
libpng10 Red Hat:enterprise_linux:4::as | All versions | 0:1.0.16-9.el4 |
libpng10-debuginfo Red Hat:enterprise_linux:4::as | All versions | 0:1.0.16-9.el4 |
libpng10-devel Red Hat:enterprise_linux:4::as | All versions | 0:1.0.16-9.el4 |
libpng Red Hat:enterprise_linux:4::desktop | All versions | 2:1.2.7-8.el4 |
libpng-debuginfo Red Hat:enterprise_linux:4::desktop | All versions | 2:1.2.7-8.el4 |
libpng-devel Red Hat:enterprise_linux:4::desktop | All versions | 2:1.2.7-8.el4 |
libpng10 Red Hat:enterprise_linux:4::desktop | All versions | 0:1.0.16-9.el4 |
libpng10-debuginfo Red Hat:enterprise_linux:4::desktop | All versions | 0:1.0.16-9.el4 |
libpng10-devel Red Hat:enterprise_linux:4::desktop | All versions | 0:1.0.16-9.el4 |
libpng Red Hat:enterprise_linux:4::es | All versions | 2:1.2.7-8.el4 |
libpng-debuginfo Red Hat:enterprise_linux:4::es | All versions | 2:1.2.7-8.el4 |
libpng-devel Red Hat:enterprise_linux:4::es | All versions | 2:1.2.7-8.el4 |
libpng10 Red Hat:enterprise_linux:4::es | All versions | 0:1.0.16-9.el4 |
libpng10-debuginfo Red Hat:enterprise_linux:4::es | All versions | 0:1.0.16-9.el4 |
libpng10-devel Red Hat:enterprise_linux:4::es | All versions | 0:1.0.16-9.el4 |
libpng Red Hat:enterprise_linux:4::ws | All versions | 2:1.2.7-8.el4 |
libpng-debuginfo Red Hat:enterprise_linux:4::ws | All versions | 2:1.2.7-8.el4 |
libpng-devel Red Hat:enterprise_linux:4::ws | All versions | 2:1.2.7-8.el4 |
libpng10 Red Hat:enterprise_linux:4::ws | All versions | 0:1.0.16-9.el4 |
libpng10-debuginfo Red Hat:enterprise_linux:4::ws | All versions | 0:1.0.16-9.el4 |
libpng10-devel Red Hat:enterprise_linux:4::ws | All versions | 0:1.0.16-9.el4 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Libpng Libpng.
How do I fix CVE-2011-2692?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2011-2692 being exploited?
There is no known exploitation of CVE-2011-2692 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as GHSA-jggw-3xrj-fwp3, RHSA-2011:1103.