High severity7.5NVD Advisory· Published Oct 6, 2020· Updated Jun 17, 2026
CVE-2020-25866
CVE-2020-25866
Description
In Wireshark 3.2.0 to 3.2.6 and 3.0.0 to 3.0.13, the BLIP protocol dissector has a NULL pointer dereference because a buffer was sized for compressed (not uncompressed) messages. This was addressed in epan/dissectors/packet-blip.c by allowing reasonable compression ratios and rejecting ZIP bombs.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
16- Wireshark/Wiresharkdescription
- osv-coords7 versionspkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP1pkg:rpm/opensuse/wireshark&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/wireshark&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/wireshark&distro=openSUSE%20Tumbleweed
< 3.2.7-3.41.1+ 6 more
- (no CPE)range: < 3.2.7-3.41.1
- (no CPE)range: < 3.2.7-3.41.1
- (no CPE)range: < 3.2.7-3.41.1
- (no CPE)range: < 3.2.7-3.41.1
- (no CPE)range: < 3.2.7-lp152.2.6.1
- (no CPE)range: < 3.2.7-lp151.2.15.1
- (no CPE)range: < 3.4.8-1.2
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
9- gitlab.com/wireshark/wireshark/-/commit/4a948427100b6c109f4ec7b4361f0d2aec5e5c3fnvdPatchThird Party Advisory
- www.oracle.com/security-alerts/cpujan2021.htmlnvdPatchThird Party Advisory
- gitlab.com/wireshark/wireshark/-/issues/16866nvdExploitIssue TrackingThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-11/msg00035.htmlnvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-11/msg00038.htmlnvdMailing ListThird Party Advisory
- www.wireshark.org/security/wnpa-sec-2020-13.htmlnvdVendor Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DQHPKZFQ7W3X34RYN3FWFYCFJD4FXJW/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IGRYKW4XLR44YDWTAH547ODYYBYPB2D/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZUHMK5HYTUUDXA64T2TAMAFMYV674QBW/nvd
News mentions
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