Out-of-bounds Read Affecting tcpdump package, versions <14:4.9.2-6.el8
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RHEL8-TCPDUMP-3718058
- published26 Jul 2021
- disclosed3 Dec 2018
Introduced: 3 Dec 2018
CVE-2018-19519 (opens in a new tab)How to fix?
Upgrade RHEL:8 tcpdump to version 14:4.9.2-6.el8 or higher.
This issue was patched in RHSA-2020:1604.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tcpdump package and not the tcpdump package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
In tcpdump 4.9.2, a stack-based buffer over-read exists in the print_prefix function of print-hncp.c via crafted packet data because of missing initialization.
References
- http://www.securityfocus.com/bid/106098
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44516
- https://access.redhat.com/security/cve/CVE-2018-19519
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU/
- https://github.com/zyingp/temp/blob/master/tcpdump.md
- https://access.redhat.com/errata/RHSA-2020:1604
- https://usn.ubuntu.com/4252-1/
- https://usn.ubuntu.com/4252-2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU/