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CVE-2020-12740

Published: 8 May 2020

tcprewrite in Tcpreplay through 4.3.2 has a heap-based buffer over-read during a get_c operation. The issue is being triggered in the function get_ipv6_next() at common/get.c.

Priority

Medium

Cvss 3 Severity Score

9.1

Score breakdown

Status

Package Release Status
tcpreplay
Launchpad, Ubuntu, Debian
bionic
Released (4.2.6-1ubuntu0.1~esm3)
Available with Ubuntu Pro
eoan Ignored
(end of life)
focal
Released (4.3.2-1ubuntu0.1~esm1)
Available with Ubuntu Pro
groovy Not vulnerable
(4.3.3-2)
hirsute Not vulnerable
(4.3.3-2)
impish Not vulnerable
(4.3.3-2)
jammy Not vulnerable
(4.3.3-2)
kinetic Not vulnerable
(4.3.3-2)
lunar Not vulnerable
(4.3.3-2)
mantic Not vulnerable
(4.3.3-2)
trusty Does not exist
(trusty was not-affected [code not present])
upstream
Released (4.3.3)
xenial Not vulnerable
(code not present)
Patches:
upstream: https://github.com/appneta/tcpreplay/pull/587/commits/71ea80ba8756fff1d9242a70484f64906ab8e6ae
upstream: https://github.com/appneta/tcpreplay/pull/587/commits/5113429140250e9640c3eca1be7745ff8380d363

Severity score breakdown

Parameter Value
Base score 9.1
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H