Out-of-bounds Read in Tcpdump
CVE-2018-19519
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.024 (83.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Tcpdump — versions 4.9.2
Weakness classification (CWE)
References
- www.securityfocus.com/bid/106098 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/zyingp/temp/blob/master/tcpdump.md (Exploit, Third Party Advisory, Mitigation)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:3976 (vendor-advisory)
- usn.ubuntu.com/4252-2/ (vendor-advisory)
- usn.ubuntu.com/4252-1/ (vendor-advisory)
- kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44516
Frequently asked questions
- What is CVE-2018-19519?
- CVE-2018-19519 is a medium-severity vulnerability in Tcpdump, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2018-11-25.
- How severe is CVE-2018-19519?
- Medium severity. CVSS v3 base score is 5.5 out of 10.