PCRE2 before 10.48 allows a pcre2_dfa_match out-of-bounds write because reuse of a cached workspace block, in a recursive DFA matching workspace, lacks a size check (even though a newly allocated block, for the same purpose, does have a size check). This outcome requires an attacker-controlled regular expression, or a recursive pattern in conjunction with a small heap limit (this can be set through the API).
Weakness
The product does not sufficiently protect all possible paths that a user can take to access restricted functionality or resources.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | RedHat | pcre2-0:10.44-1.5.el10_2 | * |
| Red Hat Enterprise Linux 8 | RedHat | pcre2-0:10.32-4.el8_10 | * |
| Red Hat Enterprise Linux 9 | RedHat | pcre2-0:10.40-7.el9_8 | * |
| Red Hat Enterprise Linux 9 | RedHat | pcre2-0:10.40-7.el9_8 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | pcre2-0:10.40-2.el9_2.1 | * |
| Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | RedHat | pcre2-0:10.40-5.el9_4.1 | * |
| Red Hat Enterprise Linux 9.6 Extended Update Support | RedHat | pcre2-0:10.40-6.el9_6.1 | * |
| Red Hat Hardened Images | RedHat | pcre2-main-10.48-0.1.hum1 | * |
| Red Hat Update Infrastructure 5 | RedHat | rhui5/cds-kubernetes-rhel9:1791978534 | * |
| Red Hat Update Infrastructure 5 | RedHat | rhui5/cds-rhel9:1791978528 | * |
| Red Hat Update Infrastructure 5 | RedHat | rhui5/haproxy-rhel9:1791978528 | * |
| Red Hat Update Infrastructure 5 | RedHat | rhui5/installer-rhel9:1791964013 | * |
| Red Hat Update Infrastructure 5 | RedHat | rhui5/rhua-rhel9:1791978693 | * |
| Pcre2 | Ubuntu | devel | * |
| Pcre2 | Ubuntu | esm-infra/focal | * |
| Pcre2 | Ubuntu | jammy | * |
| Pcre2 | Ubuntu | noble | * |
| Pcre2 | Ubuntu | resolute | * |
| Pcre2 | Ubuntu | stonking | * |
| Pcre2 | Ubuntu | upstream | * |