CVE-2018-20553

Publication date 28 December 2018

Last updated 25 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

Tcpreplay before 4.3.1 has a heap-based buffer over-read in get_l2len in common/get.c.

Read the notes from the security team

Status

Package Ubuntu Release Status
tcpreplay 25.04 plucky
Not affected
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 Ignored end of life
20.04 LTS focal
Fixed 4.3.2-1ubuntu0.1~esm1
19.10 eoan Ignored end of life
19.04 disco
Not affected
18.10 cosmic Ignored end of life
18.04 LTS bionic
Fixed 4.2.6-1ubuntu0.1~esm2
16.04 LTS xenial
Fixed 3.4.4-2+deb8u1ubuntu0.1~esm2
14.04 LTS trusty Not in release

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Notes

ccdm94

version 4.3.2 includes the fix applied by the original patch, however, additional fixes have been released since, and 4.3.2 does not include those.

Patch details

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

Package Patch details
tcpreplay

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H