CVE-2018-19935

Publication date 7 December 2018

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

ext/imap/php_imap.c in PHP 5.x and 7.x before 7.3.0 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty string in the message argument to the imap_mail function.

Read the notes from the security team

Status

Package Ubuntu Release Status
php-imap 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 5.4.6-0ubuntu5.1
php5 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Not affected
php7.0 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial
Fixed 7.0.33-0ubuntu0.16.04.1
14.04 LTS trusty Not in release
php7.2 18.10 cosmic
Fixed 7.2.15-0ubuntu0.18.20.1
18.04 LTS bionic
Fixed 7.2.15-0ubuntu0.18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
php7.3 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

Notes

mdeslaur

php5 in precise and trusty doesn't build imap, it is in a separate php-imap source package.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
php7.3

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Other references