Out-of-bounds read in Debian Linux - CVE-2017-17935
Published: December 27, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU37726
CSH Severity: Medium
CVSS v4.0: 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
CVE-ID: CVE-2017-17935
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Debian
Affected software:
Debian Linux
Debian Linux
Detailed vulnerability description
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.
How to mitigate CVE-2017-17935
Install update from vendor's website.
Sources
- 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