Loop with Unreachable Exit Condition ('Infinite Loop') Affecting tcpdump package, versions <4.9.2-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN11-TCPDUMP-517128
- published14 Sept 2017
- disclosed14 Sept 2017
Introduced: 14 Sep 2017
CVE-2017-12997 (opens in a new tab)How to fix?
Upgrade Debian:11 tcpdump to version 4.9.2-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tcpdump package and not the tcpdump package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
The LLDP parser in tcpdump before 4.9.2 could enter an infinite loop due to a bug in print-lldp.c:lldp_private_8021_print().
References
- https://security-tracker.debian.org/tracker/CVE-2017-12997
- https://support.apple.com/HT208221
- http://www.tcpdump.org/tcpdump-changes.txt
- http://www.debian.org/security/2017/dsa-3971
- https://security.gentoo.org/glsa/201709-23
- https://github.com/the-tcpdump-group/tcpdump/commit/34cec721d39c76be1e0a600829a7b17bdfb832b6
- https://access.redhat.com/errata/RHEA-2018:0705
- http://www.securityfocus.com/bid/100914
- http://www.securitytracker.com/id/1039307
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-12997