SB2015122805 - Input validation error in libpng (Alpine package)
Published: December 28, 2015
Security Bulletin ID
SB2015122805
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2015-8472)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (application crash) or possibly have unspecified other impact via a small bit-depth value in an IHDR (aka image header) chunk in a PNG image.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=c1e9d0a871f4db90160910973fecde6305aaaa8b
- https://git.alpinelinux.org/aports/commit/?id=356110cbe08eb727605e9a89794ce7e0dc4feb0f
- https://git.alpinelinux.org/aports/commit/?id=2ecb1a888cd5313a5f64513686454b72bcd0d2bc
- https://git.alpinelinux.org/aports/commit/?id=d692ac089eba175ea2e505433f484898c5adaf43