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CVE-2018-20430

Published: 24 December 2018

GNU Libextractor through 1.8 has an out-of-bounds read vulnerability in the function history_extract() in plugins/ole2_extractor.c, related to EXTRACTOR_common_convert_to_utf8 in common/convert.c.

From the Ubuntu Security Team

It was discovered that Libextractor incorrectly handled certain specially crafted files. An attacker could possibly use this issue to cause a denial of service.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
libextractor
Launchpad, Ubuntu, Debian
bionic Needed

cosmic Ignored
(end of life)
disco Not vulnerable
(1:1.8-2)
eoan Not vulnerable
(1:1.9-2)
focal Not vulnerable
(1:1.9-2)
groovy Not vulnerable
(1:1.9-2)
hirsute Not vulnerable
(1:1.9-2)
impish Not vulnerable
(1:1.9-2)
jammy Not vulnerable
(1:1.9-2)
kinetic Not vulnerable
(1:1.9-2)
lunar Not vulnerable
(1:1.9-2)
mantic Not vulnerable
(1:1.9-2)
trusty
Released (1:1.3-1ubuntu0.1~esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (1:1.3-2+deb8u4, 1:1.8-2)
xenial
Released (1:1.3-4+deb9u3build0.16.04.1)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H