CVE-2020-12740

Publication date 8 May 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
tcpreplay	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Fixed 4.3.2-1ubuntu0.1~esm1 Ubuntu Pro
	19.10 eoan	Ignored end of life
	18.04 LTS bionic	Fixed 4.2.6-1ubuntu0.1~esm3 Ubuntu Pro
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
tcpreplay	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 · Critical
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

References

Related Ubuntu Security Notices (USN)

USN-5205-1
Tcpreplay vulnerabilities
4 October 2022