Unrated severityNVD Advisory· Published Nov 19, 2021· Updated Aug 4, 2024
CVE-2021-39921
CVE-2021-39921
Description
NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
9- osv-coords7 versionspkg:rpm/opensuse/wireshark&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/wireshark&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/wireshark&distro=openSUSE%20Tumbleweedpkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP3
< 3.4.10-lp152.2.21.1+ 6 more
- (no CPE)range: < 3.4.10-lp152.2.21.1
- (no CPE)range: < 3.4.10-3.62.1
- (no CPE)range: < 3.4.10-1.1
- (no CPE)range: < 3.4.10-3.62.1
- (no CPE)range: < 3.4.10-3.62.1
- (no CPE)range: < 3.4.10-3.62.1
- (no CPE)range: < 3.4.10-3.62.1
Patches
Vulnerability mechanics
References
8- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/mitrevendor-advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/mitrevendor-advisory
- security.gentoo.org/glsa/202210-04mitrevendor-advisory
- www.debian.org/security/2021/dsa-5019mitrevendor-advisory
- lists.debian.org/debian-lts-announce/2021/12/msg00015.htmlmitremailing-list
- gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.jsonmitre
- gitlab.com/wireshark/wireshark/-/issues/17703mitre
- www.wireshark.org/security/wnpa-sec-2021-14.htmlmitre
News mentions
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