SB2015020218 - Heap-based buffer overflow in libpng (Alpine package)

Description

This security bulletin contains information about 1 security vulnerability.

1) Heap-based buffer overflow (CVE-ID: CVE-2014-9495)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing data within the png_combine_row function in libpng before 1.5.21 and 1.6.x before 1.6.16, when running on 64-bit systems. A remote attacker can pass a specially crafted file to the affected application, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://git.alpinelinux.org/aports/commit/?id=7a7c3dc1ee28d4241d5ef12fb033da839898f056
• https://git.alpinelinux.org/aports/commit/?id=1e8386cb736fd14d922b00487b5d853cb3a8cd37
• https://git.alpinelinux.org/aports/commit/?id=f7af94eb6c9bf83969fad2176e8adf3752060856
• https://git.alpinelinux.org/aports/commit/?id=d4d31395bc2167eb3fb90dc6d51f93c7fde47230