CVEvulnerability

CVE-2021-21704

5.9 MEDIUM Published 2021-10-04 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-10-04
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.0 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS 3.1 ([email protected])
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
Weaknesses
CWE-125, CWE-190, CWE-787

Description

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 configurations

• php php (>= 7.3.0 < 7.3.29) • php php (>= 7.4.0 < 7.4.21) • php php (>= 8.0.0 < 8.0.8) • netapp clustered data ontap

Related

Weakness · CWE (3)

  • CWE-125 Out-of-bounds Read weakness
  • CWE-190 Integer Overflow or Wraparound weakness
  • CWE-787 Out-of-bounds Write weakness

References