cbcvebase.
CVE-2020-25862
published 2020-10-06

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. This was addressed in epan/dissectors/packet-tcp.c by…

PriorityP339high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
2.45%
82.5th percentile
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.

Affected

20 ranges
VendorProductVersion rangeFixed in
debiandebian_linux
debianwireshark< wireshark 3.2.7-1 (bookworm)wireshark 3.2.7-1 (bookworm)
fedoraprojectfedora
fedoraprojectfedora
fedoraprojectfedora
opensuseleap
opensuseleap
oraclezfs_storage_appliance_firmware
sds_projectsds0 – 4.4.0
wiresharkwireshark>= 0 < 3.2.7-13.2.7-1
wiresharkwireshark>= 0 < 3.2.7-13.2.7-1
wiresharkwireshark>= 0 < 3.2.7-13.2.7-1
wiresharkwireshark>= 0 < 3.2.7-13.2.7-1
wiresharkwireshark>= 0 < 2.6.10-1~ubuntu14.04.0~esm22.6.10-1~ubuntu14.04.0~esm2
wiresharkwireshark>= 0 < 2.6.10-1~ubuntu16.04.0+esm12.6.10-1~ubuntu16.04.0+esm1
wiresharkwireshark>= 0 < 2.6.10-1~ubuntu18.04.0+esm12.6.10-1~ubuntu18.04.0+esm1
wiresharkwireshark>= 0 < 3.2.3-1ubuntu0.1~esm13.2.3-1ubuntu0.1~esm1
wiresharkwireshark2.6.0 – 2.6.20
wiresharkwireshark3.0.0 – 3.0.13
wiresharkwireshark3.2.0 – 3.2.6

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
ghsa5.3MEDIUM
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
vendor_ubuntu7.5HIGH
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.