SB2016091424 - Heap-based buffer overflow in flex (Alpine package)
Published: September 14, 2016
Security Bulletin ID
SB2016091424
CSH 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 vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2016-6354)
CWE-ID: CWE-122 - Heap-based Buffer Overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error in yy_get_next_buffer() function in Flex before 2.6.1. A remote attacker can trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=f63b96be2fe0f6fc14f13f208218a2b78c7d91ff
- https://git.alpinelinux.org/aports/commit/?id=fdfea2e5175624e5e5de51a3a34b1de9666fd3e7
- https://git.alpinelinux.org/aports/commit/?id=18f6f85d8b1796fe0ecd5b724710d5ccee33050f
- https://git.alpinelinux.org/aports/commit/?id=263dc70f0c22470f877696ed028a0eff254dc32d