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CVE-2016-4449

Published: 30 May 2016

XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.

Priority

Low

Cvss 3 Severity Score

7.1

Score breakdown

Status

Package Release Status
libxml2
Launchpad, Ubuntu, Debian
precise
Released (2.7.8.dfsg-5.1ubuntu4.15)
trusty
Released (2.9.1+dfsg1-3ubuntu4.8)
upstream
Released (2.9.4)
wily
Released (2.9.2+zdfsg1-4ubuntu0.4)
xenial
Released (2.9.3+dfsg1-1ubuntu0.1)
yakkety Not vulnerable
(2.9.3+dfsg1-1.2)
zesty Not vulnerable
(2.9.3+dfsg1-1.2)
Patches:
upstream: https://git.gnome.org/browse/libxml2/commit/?id=b1d34de46a11323fccffa9fadeb33be670d602f5

Severity score breakdown

Parameter Value
Base score 7.1
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H