SB2017022210 - Infinite loop in wireshark (Alpine package)
Published: February 22, 2017
Security Bulletin ID
SB2017022210
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Infinite loop (CVE-ID: CVE-2017-6014)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In Wireshark 2.2.4 and earlier, a crafted or malformed STANAG 4607 capture file will cause an infinite loop and memory exhaustion. If the packet size field in a packet header is null, the offset to read from will not advance, causing continuous attempts to read the same zero length packet. This will quickly exhaust all system memory.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=012e5b8ddaa5ad3353e0df651fd6b2f2097705ab
- https://git.alpinelinux.org/aports/commit/?id=0fc0564f72ef78608f8a2d377d95facb4c388545
- https://git.alpinelinux.org/aports/commit/?id=0713e068b75f53010649e8267a305b58a821f197
- https://git.alpinelinux.org/aports/commit/?id=072fede08fb5b21fc94d4175e7b9d3a2959c7328