CVE-2021-21704
Multiple vulnerabilities in Firebird client extension
MEDIUM 5.9EPSS 1.8%
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.
- Affected
- PHP Group · PHP
- CVSS v3.1 NVD
- 5.9 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS v3.1 PHP
- 5.0 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L - CVSS v2.0 NVD
- 4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P - EPSS
- 1.80% chance of exploitation in the next 30 days, 78th percentile
- Published
- 2021-10-04
- Updated
- 2024-09-17
Proof-of-concept exploits (2)
Security advisories
- https://bugs.php.net/bug.php?id=76448
- https://bugs.php.net/bug.php?id=76452
- https://security.gentoo.org/glsa/202209-20
- https://security.netapp.com/advisory/ntap-20211029-0006