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PHP: Denial of service — GLSA 202009-10

A vulnerabilities in PHP could lead to a Denial of Service condition.

Affected packages

Package dev-lang/php on all architectures
Affected versions < 7.2.33
< 7.3.21
< 7.4.9
Unaffected versions >= 7.2.33
>= 7.3.21
>= 7.4.9

Background

PHP is an open source general-purpose scripting language that is especially suited for web development.

Description

It was discovered that PHP did not properly handle PHAR files.

Impact

A remote attacker could entice a user to open a specially crafted PHAR file using PHP, possibly allowing attacker to obtain sensitive information or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All PHP 7.2 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-lang/php-7.2.33"

All PHP 7.3 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-lang/php-7.3.21"

All PHP 7.4 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-lang/php-7.4.9"

References

Release date
September 13, 2020

Latest revision
September 13, 2020: 1

Severity
low

Exploitable
local, remote

Bugzilla entries