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CVE-2021-37136

Published: 19 October 2021

The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
netty
Launchpad, Ubuntu, Debian
focal
Released (1:4.1.45-1ubuntu0.1~esm1)
Available with Ubuntu Pro
hirsute Ignored
(end of life)
impish Ignored
(end of life)
lunar Ignored
(end of life, was needs-triage)
trusty Needs triage

upstream Needs triage

jammy
Released (1:4.1.48-4+deb11u1build0.22.04.1)
kinetic
Released (1:4.1.48-5ubuntu0.1)
xenial
Released (1:4.0.34-1ubuntu0.1~esm1)
Available with Ubuntu Pro
bionic
Released (1:4.1.7-4ubuntu0.1+esm2)
Available with Ubuntu Pro
mantic Needs triage

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H