SB2020022446 - Heap-based buffer overflow in cvs (Alpine package)
Published: February 24, 2020
Security Bulletin ID
SB2020022446
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2010-3846)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Array index error in the apply_rcs_change function in rcs.c in CVS 1.11.23. A remote attacker can use an RCS file containing crafted delta fragment changes that trigger a heap-based buffer overflow. to 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=254098d5ef34e30120e51a521573ed7eb0666100
- https://git.alpinelinux.org/aports/commit/?id=f4d7bda112c1d5a48b63c0d4c8f0949df43e7e97
- https://git.alpinelinux.org/aports/commit/?id=ea612159fb42a3276203bef5c374da467d8b049b
- https://git.alpinelinux.org/aports/commit/?id=8cdd93154aeb43702a196270e3818bf2466c3e0c
- https://git.alpinelinux.org/aports/commit/?id=ff0ba778a6651a6d66c94171e62dd4644c239039