In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context. An incorrect free operation can occur.
Weakness
The product calls free() on a pointer to memory that was not allocated using associated heap allocation functions such as malloc(), calloc(), or realloc().
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pcre2 | Pcre | * | 10.48 (excluding) |
| Pcre2 | Pcre | 10.48-rc1 (including) | 10.48-rc1 (including) |
| Red Hat Enterprise Linux 10 | RedHat | pcre2-0:10.44-1.5.el10_2 | * |
| Red Hat Enterprise Linux 10 | RedHat | mariadb11.8-3:11.8.8-2.el10_2 | * |
| Red Hat Enterprise Linux 10.0 Extended Update Support | RedHat | pcre2-0:10.44-1.4.el10_0 | * |
| 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 Cost Management On-Premise 1 | RedHat | costmanagement/costmanagement-ui-rhel10:1792605272 | * |
| 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 | * |
Potential Mitigations
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, glibc in Linux provides protection against free of invalid pointers.