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6.3 Medium

CVE-2026-7568 In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the metaphone()…

Description

In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the metaphone() function in ext/standard/metaphone.c uses a signed int variable to track the current position within the input string. If a string longer than 2,147,483,647 bytes is passed, a signed integer overflow occurs, resulting in undefined behavior. This can lead to an out-of-bounds read, causing a segmentation fault or access to unrelated memory, and may affect the availability of the PHP process.

Affected products and versions

Product Affected versions Fixed in
PHP 8.5 earliest → < 8.5.6 8.5.6
PHP 8.4 earliest → < 8.4.21 8.4.21
PHP 8.3 earliest → < 8.3.31 8.3.31
PHP 8.2 earliest → < 8.2.31 8.2.31
Red Hat Enterprise Linux AppStream (v. 10) Versions not published
Red Hat Enterprise Linux AppStream (v. 8) Versions not published
Red Hat Enterprise Linux AppStream (v. 9) Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Show the 4 other branches
Product Affected versions Fixed in
Red Hat Enterprise Linux 8 8100020260604072603 earliest → < 8100020260604072603.f7998665 8100020260604072603.f7998665
Red Hat Enterprise Linux 9 Versions not published
Red Hat Hardened Images Versions not published
Red Hat Enterprise Linux 10 Versions not published

References

Timeline

  1. Published
  2. Last modified

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