#VU89150 Infinite loop in Tcpdump - CVE-2024-2397

Vulnerability identifier: #VU89150

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-2397

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Tcpdump
Server applications / DLP, anti-spam, sniffers

Vendor: Tcpdump.org

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop in PPP printer when handling the DLT_PPP_SERIAL .pcap savefile. A remote attacker can trick  the victim into opening a specially crafted file and cause denial of service conditions.

Mitigation
Note, the vulnerability does not affect any tcpdump release, but it affected the git master branch from 2023-06-05 to 2024-03-21.

Vulnerable software versions

Tcpdump: master

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External links
https://github.com/the-tcpdump-group/tcpdump/commit/b9811ef5bb1b7d45a90e042f81f3aaf233c8bcb2

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.