SB2017031718 - Infinite loop in wireshark (Alpine package)
Published: March 17, 2017
Security Bulletin ID
SB2017031718
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-2017-6474)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In Wireshark 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10, there is a NetScaler file parser infinite loop, triggered by a malformed capture file. This was addressed in wiretap/netscaler.c by validating record sizes.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=012e5b8ddaa5ad3353e0df651fd6b2f2097705ab
- https://git.alpinelinux.org/aports/commit/?id=5ef9a224ec901396be2e487a7a81b32b0bcef9e0
- https://git.alpinelinux.org/aports/commit/?id=a651332cfe10a56fbb9a40df8cedfc15e9b7d7bb
- https://git.alpinelinux.org/aports/commit/?id=441bebab56908a3039279bfcd8b051007c2d8ff9