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CVE-2018-20030

Published: 20 February 2019

An error when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif version 0.6.21 can be exploited to exhaust available CPU resources.

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
libexif
Launchpad, Ubuntu, Debian
bionic
Released (0.6.21-4ubuntu0.2)
cosmic Ignored
(end of life)
disco Not vulnerable
(0.6.21-5.1)
eoan Not vulnerable
(0.6.21-5.1)
focal Not vulnerable
(0.6.21-5.1)
trusty
Released (0.6.21-1ubuntu1+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream Needs triage

xenial
Released (0.6.21-2ubuntu0.2)
Patches:
upstream: https://github.com/libexif/libexif/commit/6aa11df549114ebda520dde4cdaea2f9357b2c89

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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H