VulnerabilityModified
CVE-2020-25862
In Wireshark 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, and 2.6.0 to 2.6.20, the TCP dissector could crash.
HIGH 7.5EPSS 2.35%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In Wireshark 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, and 2.6.0 to 2.6.20, the TCP dissector could crash. This was addressed in epan/dissectors/packet-tcp.c by changing the handling of the invalid 0xFFFF checksum.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.35% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-354
- Affected
- wireshark/wireshark · fedoraproject/fedora · opensuse/leap · debian/debian linux · oracle/zfs storage appliance firmware
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00035.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00038.htmlMailing List, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/commit/7f3fe6164a68b76d9988c4253b24d43f498f1753Patch, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/16816Exploit, Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00008.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DQHPKZFQ7W3X34RYN3FWFYCFJD4FXJW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IGRYKW4XLR44YDWTAH547ODYYBYPB2D/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZUHMK5HYTUUDXA64T2TAMAFMYV674QBW/
- https://www.oracle.com/security-alerts/cpujan2021.htmlPatch, Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2020-12.htmlVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00035.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00038.htmlMailing List, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/commit/7f3fe6164a68b76d9988c4253b24d43f498f1753Patch, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/16816Exploit, Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00008.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DQHPKZFQ7W3X34RYN3FWFYCFJD4FXJW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IGRYKW4XLR44YDWTAH547ODYYBYPB2D/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZUHMK5HYTUUDXA64T2TAMAFMYV674QBW/
- https://www.oracle.com/security-alerts/cpujan2021.htmlPatch, Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2020-12.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.