CVE-2018-19623
First published: Thu Nov 29 2018(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/wireshark | 2.6.20-0+deb10u4 2.6.20-0+deb10u7 3.4.10-0+deb11u1 4.0.6-1~deb12u1 4.0.10-1 | |
| Wireshark Wireshark | >=2.4.0<=2.4.10 | |
| Wireshark Wireshark | >=2.6.0<=2.6.4 | |
| Debian GNU/Linux | =8.0 | |
| Debian GNU/Linux | =9.0 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
- http://www.securityfocus.com/bid/106051
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15132
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=9c8645ec7b28e4d7193962ecd2a418613bf6a84f
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
- https://www.debian.org/security/2018/dsa-4359
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://www.wireshark.org/security/wnpa-sec-2018-53.html
- https://security-tracker.debian.org/tracker/CVE-2018-19623
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=9c8645ec7b28e4d7193962ecd2a418613bf6a84f
Frequently Asked Questions
What is the severity of CVE-2018-19623?
CVE-2018-19623 has been classified as a high-severity vulnerability due to the potential for remote code execution and application crashes.
How do I fix CVE-2018-19623?
To mitigate CVE-2018-19623, update Wireshark to a version higher than 2.6.4 or 2.4.10.
What versions of Wireshark are affected by CVE-2018-19623?
CVE-2018-19623 affects Wireshark versions from 2.6.0 to 2.6.4 and from 2.4.0 to 2.4.10.
Can CVE-2018-19623 allow an attacker to execute code?
Yes, CVE-2018-19623 could allow a remote attacker to write arbitrary data to memory, which may lead to code execution.
What specific component in Wireshark does CVE-2018-19623 affect?
CVE-2018-19623 affects the LBMPDM dissector component of Wireshark.
- collector/security-tracker-debian
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/references
- agent/last-modified-date
- agent/severity
- agent/weakness
- agent/author
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/wireshark
- canonical/wireshark wireshark
- version/wireshark wireshark/2.4.0
- version/wireshark wireshark/2.4.10
- version/wireshark wireshark/2.6.0
- version/wireshark wireshark/2.6.4
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/8.0
- version/debian gnu/linux/9.0