libwireshark11: 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
CVE-2020-25862 is fixed in 13 products on 1 platform, first by libwireshark-data 2.6.10-1~ubuntu18.04.0+esm1, released October 6, 2020. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libwireshark-data · Ubuntu 18.04.6 LTS (bionic) | 2.6.10-1~ubuntu18.04.0+esm1 | libwireshark-data 2.6.10-1~ubuntu18.04.0+esm1 | Oct 6, 2020 |
| libwireshark-data · Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | libwireshark-data 3.2.3-1ubuntu0.1~esm1 | Oct 6, 2020 |
| libwireshark11 · Ubuntu 18.04.6 LTS (bionic) | 2.6.10-1~ubuntu18.04.0+esm1 | libwireshark11 2.6.10-1~ubuntu18.04.0+esm1 | Oct 6, 2020 |
| libwireshark13 · Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | libwireshark13 3.2.3-1ubuntu0.1~esm1 | Oct 6, 2020 |
| libwiretap10 · Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | libwiretap10 3.2.3-1ubuntu0.1~esm1 | Oct 6, 2020 |
| libwiretap8 · Ubuntu 18.04.6 LTS (bionic) | 2.6.10-1~ubuntu18.04.0+esm1 | libwiretap8 2.6.10-1~ubuntu18.04.0+esm1 | Oct 6, 2020 |
| libwscodecs2 · Ubuntu 18.04.6 LTS (bionic) | 2.6.10-1~ubuntu18.04.0+esm1 | libwscodecs2 2.6.10-1~ubuntu18.04.0+esm1 | Oct 6, 2020 |
| libwsutil11 · Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | libwsutil11 3.2.3-1ubuntu0.1~esm1 | Oct 6, 2020 |
| libwsutil9 · Ubuntu 18.04.6 LTS (bionic) | 2.6.10-1~ubuntu18.04.0+esm1 | libwsutil9 2.6.10-1~ubuntu18.04.0+esm1 | Oct 6, 2020 |
| tshark · Ubuntu 18.04.6 LTS (bionic) | 2.6.10-1~ubuntu18.04.0+esm1 | tshark 2.6.10-1~ubuntu18.04.0+esm1 | Oct 6, 2020 |
| tshark · Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | tshark 3.2.3-1ubuntu0.1~esm1 | Oct 6, 2020 |
| wireshark · Ubuntu 18.04.6 LTS (bionic) | 2.6.10-1~ubuntu18.04.0+esm1 | wireshark 2.6.10-1~ubuntu18.04.0+esm1 | Oct 6, 2020 |
| wireshark · Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | wireshark 3.2.3-1ubuntu0.1~esm1 | Oct 6, 2020 |
| wireshark-common · Ubuntu 18.04.6 LTS (bionic) | 2.6.10-1~ubuntu18.04.0+esm1 | wireshark-common 2.6.10-1~ubuntu18.04.0+esm1 | Oct 6, 2020 |
| wireshark-common · Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | wireshark-common 3.2.3-1ubuntu0.1~esm1 | Oct 6, 2020 |
| wireshark-gtk · Ubuntu 18.04.6 LTS (bionic) | 2.6.10-1~ubuntu18.04.0+esm1 | wireshark-gtk 2.6.10-1~ubuntu18.04.0+esm1 | Oct 6, 2020 |
| wireshark-gtk · Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | wireshark-gtk 3.2.3-1ubuntu0.1~esm1 | Oct 6, 2020 |
| wireshark-qt · Ubuntu 18.04.6 LTS (bionic) | 2.6.10-1~ubuntu18.04.0+esm1 | wireshark-qt 2.6.10-1~ubuntu18.04.0+esm1 | Oct 6, 2020 |
| wireshark-qt · Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | wireshark-qt 3.2.3-1ubuntu0.1~esm1 | Oct 6, 2020 |
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