SB2015070713 - Stack-based buffer overflow in linux-firmware (Alpine package)
Published: July 7, 2015
Security Bulletin ID
SB2015070713
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
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-2015-4645)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the read_fragment_table_4 function in unsquash-4.c when processing a crafted input, which triggers a stack-based buffer overflow. A remote unauthenticated attacker can 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=e1c28f4a0e9e541b761448b8fe390ea259f5f372
- https://git.alpinelinux.org/aports/commit/?id=d2bfb22c8e8f67ad7d8d02704f35ec4d2a19f9b9
- https://git.alpinelinux.org/aports/commit/?id=b2da7e7293d926fb1f48b461da5750796656915c
- https://git.alpinelinux.org/aports/commit/?id=10422f18285619f8f57b8b4ab5ca829eb21c115f
- https://git.alpinelinux.org/aports/commit/?id=cecc55e3d4bcf843b12216e31a262eda76710dc2
- https://git.alpinelinux.org/aports/commit/?id=cf3b46b5b6f7b206fa6515b969df37d82849b6bd
- https://git.alpinelinux.org/aports/commit/?id=eda97ba58d739a78737006295c03cbe3d77ebceb