SB2017042810 - Infinite loop in wireshark (Alpine package)
Published: April 28, 2017
Security Bulletin ID
SB2017042810
CSH 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 vulnerability.
1) Infinite loop (CVE-ID: CVE-2017-7702)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the WBXML dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-wbxml.c by adding length validation.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=c1e7edb9240a8c3d0893da2c7e6b098117459a5d
- https://git.alpinelinux.org/aports/commit/?id=e60cdc58fdbbe1c315e9327497e04e61dd8bd4b4
- https://git.alpinelinux.org/aports/commit/?id=7f2025713837d373400e4e9dbca65587de557be6
- https://git.alpinelinux.org/aports/commit/?id=0ac366ad2d5b3b89ad6ead39c25460c929cd823c
- https://git.alpinelinux.org/aports/commit/?id=a3941a00036014165b8ba5ecdf3b74264d05f3c4