SB2019050661 - Stack-based buffer overflow in libpng (Alpine package)
Published: May 6, 2019
Security Bulletin ID
SB2019050661
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Stack-based buffer overflow (CVE-ID: CVE-2018-14550)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing images within the get_token() function in pnm2png. A remote attacker can create a specially crafted image, pass it to the affected application, trigger stack-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=1f88f47a7730e0cff88e91f728d9ce6f9632bace
- https://git.alpinelinux.org/aports/commit/?id=64ccf246bf0c9f29e14017895a65cd46f68c36af
- https://git.alpinelinux.org/aports/commit/?id=aca534846f09aee2bd3cbccdbbeb49277730af57
- https://git.alpinelinux.org/aports/commit/?id=c6ea56540262710775618c19e90adbe0e1177be3