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CVE-2019-12900

Published: 19 June 2019

BZ2_decompress in decompress.c in bzip2 through 1.0.6 has an out-of-bounds write when there are many selectors.

Notes

AuthorNote
leosilva
first fix cause a regression see LP: 1834494
alexmurray
clamav has a vendored copy of bzip2 which is used by the
nulsft/nsis scanner. only affects clamav versions < 0.101.4

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
bzip2
Launchpad, Ubuntu, Debian
bionic
Released (1.0.6-8.1ubuntu0.2)
cosmic
Released (1.0.6-9ubuntu0.18.10.1)
disco
Released (1.0.6-9ubuntu0.19.04.1)
trusty
Released (1.0.6-5ubuntu0.1~esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (1.0.7)
xenial
Released (1.0.6-8ubuntu0.2)
Patches:
upstream: https://gitlab.com/federicomenaquintero/bzip2/commit/74de1e2e6ffc9d51ef9824db71a8ffee5962cdbc
clamav
Launchpad, Ubuntu, Debian
bionic
Released (0.101.4+dfsg-0ubuntu0.18.04.1)
disco
Released (0.101.4+dfsg-0ubuntu0.19.04.1)
trusty
Released (0.101.4+dfsg-0ubuntu0.14.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (0.101.4)
xenial
Released (0.101.4+dfsg-0ubuntu0.16.04.1)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H