Out-of-Bounds Affecting php7.4 package, versions <7.4.3-4ubuntu2.5
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Test your applications- Snyk ID SNYK-UBUNTU2004-PHP74-1315926
- published 3 Jul 2021
- disclosed 4 Oct 2021
Introduced: 3 Jul 2021
CVE-2021-21704 Open this link in a new tabHow to fix?
Upgrade Ubuntu:20.04 php7.4 to version 7.4.3-4ubuntu2.5 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream php7.4 package and not the php7.4 package as distributed by Ubuntu.
See How to fix? for Ubuntu:20.04 relevant fixed versions and status.
In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using Firebird PDO driver extension, a malicious database server could cause crashes in various database functions, such as getAttribute(), execute(), fetch() and others by returning invalid response data that is not parsed correctly by the driver. This can result in crashes, denial of service or potentially memory corruption.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2021-21704
- https://bugs.php.net/bug.php?id=76448
- https://bugs.php.net/bug.php?id=76449
- https://bugs.php.net/bug.php?id=76450
- https://bugs.php.net/bug.php?id=76452
- https://security.netapp.com/advisory/ntap-20211029-0006/
- https://security.gentoo.org/glsa/202209-20