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CVE-2018-19396

Published: 20 November 2018

ext/standard/var_unserializer.c in PHP 5.x through 7.1.24 allows attackers to cause a denial of service (application crash) via an unserialize call for the com, dotnet, or variant class.

Notes

AuthorNote
mdeslaur
this is a vulnerability in a windows-specific extension

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
php5
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty Not vulnerable
(windows-only)
xenial Does not exist

bionic Does not exist

cosmic Does not exist

php7.0
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty Does not exist

xenial Not vulnerable
(windows-only)
bionic Does not exist

cosmic Does not exist

php7.2
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty Does not exist

xenial Does not exist

bionic Not vulnerable
(windows-only)
cosmic Not vulnerable
(windows-only)

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