#VU76761 Heap-based buffer overflow in cups
Vulnerability identifier: #VU76761
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-122
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
cups
Server applications /
Other server solutions
Vendor: OpenPrinting
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the format_log_line() function cups/string.c when the "loglevel" is set to "DEBUG". A remote attacker can pass specially crafted data to the daemon, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
cups: 2.4.2
External links
http://seclists.org/oss-sec/2023/q2/206
http://github.com/OpenPrinting/cups/commit/fd8bc2d32589d1fd91fe1c0521be2a7c0462109e
http://github.com/OpenPrinting/cups/releases/tag/v2.4.3
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
