CVE-2018-7420

libwireshark11: In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the pcapng file parser could crash

CVE-2018-7420 is fixed in 10 products on 1 platform, first by libwireshark-data 2.6.3-1~ubuntu18.04.1, released August 29, 2018. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0274
86th percentile

In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the pcapng file parser could crash. This was addressed in wiretap/pcapng.c by adding a block-size check for sysdig event blocks.

Where it's fixed

ProductFixed inFixReleased
Linux
libwireshark-data · Ubuntu 18.04.6 LTS (bionic) 2.6.3-1~ubuntu18.04.1 libwireshark-data 2.6.3-1~ubuntu18.04.1 Aug 29, 2018
libwireshark11 · Ubuntu 18.04.6 LTS (bionic) 2.6.3-1~ubuntu18.04.1 libwireshark11 2.6.3-1~ubuntu18.04.1 Aug 29, 2018
libwiretap8 · Ubuntu 18.04.6 LTS (bionic) 2.6.3-1~ubuntu18.04.1 libwiretap8 2.6.3-1~ubuntu18.04.1 Aug 29, 2018
libwscodecs2 · Ubuntu 18.04.6 LTS (bionic) 2.6.3-1~ubuntu18.04.1 libwscodecs2 2.6.3-1~ubuntu18.04.1 Aug 29, 2018
libwsutil9 · Ubuntu 18.04.6 LTS (bionic) 2.6.3-1~ubuntu18.04.1 libwsutil9 2.6.3-1~ubuntu18.04.1 Aug 29, 2018
tshark · Ubuntu 18.04.6 LTS (bionic) 2.6.3-1~ubuntu18.04.1 tshark 2.6.3-1~ubuntu18.04.1 Aug 29, 2018
wireshark · Ubuntu 18.04.6 LTS (bionic) 2.6.3-1~ubuntu18.04.1 wireshark 2.6.3-1~ubuntu18.04.1 Aug 29, 2018
wireshark-common · Ubuntu 18.04.6 LTS (bionic) 2.6.3-1~ubuntu18.04.1 wireshark-common 2.6.3-1~ubuntu18.04.1 Aug 29, 2018
wireshark-gtk · Ubuntu 18.04.6 LTS (bionic) 2.6.3-1~ubuntu18.04.1 wireshark-gtk 2.6.3-1~ubuntu18.04.1 Aug 29, 2018
wireshark-qt · Ubuntu 18.04.6 LTS (bionic) 2.6.3-1~ubuntu18.04.1 wireshark-qt 2.6.3-1~ubuntu18.04.1 Aug 29, 2018