Use After Free in Wireshark
CVE-2019-5721
In Wireshark 2.4.0 to 2.4.11, the ENIP dissector could crash. This was addressed in epan/dissectors/packet-enip.c by changing the memory-management approach so that a use-after-free is avoided.
Vulnerability class: Use-After-Free
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:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
Weakness classification (CWE)
References
- code.wireshark.org/review/gitweb
- bugs.wireshark.org/bugzilla/show_bug.cgi (Exploit, Issue Tracking, Vendor Advisory)
- www.wireshark.org/security/wnpa-sec-2019-05.html (Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html (vendor-advisory)
Frequently asked questions
- What is CVE-2019-5721?
- CVE-2019-5721 is a medium-severity vulnerability in Wireshark, classified under Use After Free. CVSS score: 5.5/10. Published 2019-01-08.
- How severe is CVE-2019-5721?
- Medium severity. CVSS v3 base score is 5.5 out of 10.