Buffer overflow in Wireshark
CVE-2018-19623
In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the LBMPDM dissector could crash. In addition, a remote attacker could write arbitrary data to any memory locations before the packet-scoped memory. This was addressed in epan/dissectors/packet-lbmpdm.c by disallowing certain negative values.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.042 (90.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.042 · newest: 0.042 · change: 0.000
Affected products
- Wireshark
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- www.wireshark.org/security/wnpa-sec-2018-53.html (Vendor Advisory)
- code.wireshark.org/review/gitweb
- lists.debian.org/debian-lts-announce/2019/01/msg00010.html (mailing-list, Mailing List, Third Party Advisory)
- bugs.wireshark.org/bugzilla/show_bug.cgi (Exploit, Issue Tracking, Vendor Advisory)
- www.securityfocus.com/bid/106051 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2018/dsa-4359 (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html (vendor-advisory)
- www.oracle.com/security-alerts/cpuapr2020.html
Frequently asked questions
- What is CVE-2018-19623?
- CVE-2018-19623 is a high-severity vulnerability in Wireshark, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2018-11-29.
- How severe is CVE-2018-19623?
- High severity. CVSS v3 base score is 7.5 out of 10.