CVE-2020-25862
First published: Tue Oct 06 2020(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Wireshark Wireshark | >=2.6.0<=2.6.20 | |
| Wireshark Wireshark | >=3.0.0<=3.0.13 | |
| Wireshark Wireshark | >=3.2.0<=3.2.6 | |
| Fedoraproject Fedora | =31 | |
| Fedoraproject Fedora | =32 | |
| Fedoraproject Fedora | =33 | |
| openSUSE Leap | =15.1 | |
| openSUSE Leap | =15.2 | |
| Debian Debian Linux | =9.0 | |
| Oracle Zfs Storage Appliance Firmware | =8.8 | |
| Oracle Zfs Storage Appliance Firmware | ||
| ubuntu/wireshark | <3.2.3-1ubuntu0.1~ | 3.2.3-1ubuntu0.1~ |
| ubuntu/wireshark | <2.6.10-1~ubuntu14.04.0~ | 2.6.10-1~ubuntu14.04.0~ |
| ubuntu/wireshark | <2.6.10-1~ubuntu16.04.0+ | 2.6.10-1~ubuntu16.04.0+ |
| ubuntu/wireshark | <3.2.7-1 | 3.2.7-1 |
| ubuntu/wireshark | <2.6.10-1~ubuntu18.04.0+ | 2.6.10-1~ubuntu18.04.0+ |
| All of | ||
| Oracle Zfs Storage Appliance Firmware | =8.8 | |
| Oracle Zfs Storage Appliance Firmware | ||
| debian/wireshark | 2.6.20-0+deb10u4 2.6.20-0+deb10u8 3.4.10-0+deb11u1 4.0.11-1~deb12u1 4.2.2-1 4.2.2-1.1 |
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Reference Links
- https://gitlab.com/wireshark/wireshark/-/commit/7f3fe6164a68b76d9988c4253b24d43f498f1753
- https://gitlab.com/wireshark/wireshark/-/issues/16816
- https://www.wireshark.org/security/wnpa-sec-2020-12.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6IGRYKW4XLR44YDWTAH547ODYYBYPB2D/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DQHPKZFQ7W3X34RYN3FWFYCFJD4FXJW/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZUHMK5HYTUUDXA64T2TAMAFMYV674QBW/
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00035.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00038.html
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html
- https://launchpad.net/bugs/cve/CVE-2020-25862
- 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://security-tracker.debian.org/tracker/CVE-2020-25862
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25862
- https://ubuntu.com/security/notices/USN-6262-1
- https://nvd.nist.gov/vuln/detail/CVE-2020-25862
- https://ubuntu.com/security/CVE-2020-25862
Frequently Asked Questions
What is CVE-2020-25862?
CVE-2020-25862 is a vulnerability in Wireshark versions 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, and 2.6.0 to 2.6.20 that could cause the TCP dissector to crash.
How severe is CVE-2020-25862?
CVE-2020-25862 has a severity rating of 7.5, which is considered high.
How can I fix CVE-2020-25862?
To fix CVE-2020-25862, update Wireshark to version 3.2.3-1ubuntu0.1~ or install the latest available version from the official Wireshark website.
Where can I find more information about CVE-2020-25862?
You can find more information about CVE-2020-25862 in the following references: - [Wireshark GitLab Commit](https://gitlab.com/wireshark/wireshark/-/commit/7f3fe6164a68b76d9988c4253b24d43f498f1753) - [Wireshark GitLab Issue](https://gitlab.com/wireshark/wireshark/-/issues/16816) - [Wireshark Security Advisory](https://www.wireshark.org/security/wnpa-sec-2020-12.html)
What is the Common Weakness Enumeration (CWE) for CVE-2020-25862?
The Common Weakness Enumeration (CWE) for CVE-2020-25862 is CWE-354, which refers to a Improper Handling of Non-Null Terminated String.
- collector/nvd-index
- agent/type
- agent/remedy
- agent/last-modified-date
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- collector/usn-cve
- source/Ubuntu
- agent/software-canonical-lookup
- collector/nvd-cve
- source/NVD
- agent/weakness
- agent/severity
- agent/references
- agent/tags
- agent/event
- agent/description
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- vendor/wireshark
- canonical/wireshark wireshark
- version/wireshark wireshark/2.6.0
- version/wireshark wireshark/2.6.20
- version/wireshark wireshark/3.0.0
- version/wireshark wireshark/3.0.13
- version/wireshark wireshark/3.2.0
- version/wireshark wireshark/3.2.6
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/31
- version/fedoraproject fedora/32
- version/fedoraproject fedora/33
- vendor/opensuse
- canonical/opensuse leap
- version/opensuse leap/15.1
- version/opensuse leap/15.2
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- vendor/oracle
- canonical/oracle zfs storage appliance firmware
- version/oracle zfs storage appliance firmware/8.8
- package-manager/ubuntu
- package-manager/debian