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CVE-2019-17571

Published: 20 December 2019

Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data. This affects Log4j versions up to 1.2 up to 1.2.17.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
apache-log4j1.2
Launchpad, Ubuntu, Debian
bionic
Released (1.2.17-8+deb10u1build0.18.04.1)
disco Ignored
(reached end-of-life)
eoan Ignored
(reached end-of-life)
focal Not vulnerable
(1.2.17-9)
groovy Not vulnerable
(1.2.17-9)
hirsute Not vulnerable
(1.2.17-9)
impish Not vulnerable
(1.2.17-9)
jammy Not vulnerable
(1.2.17-9)
precise Does not exist

trusty Ignored
(not in esm-main list)
upstream Needs triage

xenial Needed

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