SB2017122710 - Out-of-bounds read in Debian Linux
Published: December 27, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017122710
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) Out-of-bounds read (CVE-ID: CVE-2017-17935)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The File_read_line function in epan/wslua/wslua_file.c in Wireshark through 2.2.11 does not properly strip ' ' characters, which allows remote attackers to cause a denial of service (buffer underflow and application crash) via a crafted packet that triggers the attempted processing of an empty line.
Remediation
Install update from vendor's website.
References
- http://www.securityfocus.com/bid/102311
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14295
- https://code.wireshark.org/review/#/c/24997/
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=137ab7d5681486c6d6cc8faac4300b7cd4ec0cf1
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html