{"document":{"aggregate_severity":{"namespace":"https://access.redhat.com/security/updates/classification/","text":"Moderate"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright © Red Hat, Inc. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"legal_disclaimer","text":"This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.","title":"Terms of Use"}],"publisher":{"category":"vendor","contact_details":"https://access.redhat.com/security/team/contact/","issuing_authority":"Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.","name":"Red Hat Product Security","namespace":"https://www.redhat.com"},"references":[{"category":"self","summary":"Canonical URL","url":"https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-58050.json"}],"title":"pcre2: PCRE2: heap-buffer-overflow read in match_ref due to missing boundary restoration in SCS","tracking":{"current_release_date":"2026-08-31T11:29:28+00:00","generator":{"date":"2026-08-31T11:29:28+00:00","engine":{"name":"Red Hat 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Read"},"discovery_date":"2025-08-27T19:00:53.152076+00:00","flags":[{"label":"vulnerable_code_not_present","product_ids":["red_hat_enterprise_linux_10:mingw32-pcre2","red_hat_enterprise_linux_10:mingw32-pcre2-static","red_hat_enterprise_linux_10:mingw64-pcre2","red_hat_enterprise_linux_10:mingw64-pcre2-static","red_hat_enterprise_linux_10:pcre2-devel","red_hat_enterprise_linux_10:pcre2-static","red_hat_enterprise_linux_10:pcre2-syntax","red_hat_enterprise_linux_10:pcre2-tools","red_hat_enterprise_linux_10:pcre2-utf16","red_hat_enterprise_linux_10:pcre2-utf32","red_hat_enterprise_linux_10:pcre2.src","red_hat_enterprise_linux_7:pcre2-devel","red_hat_enterprise_linux_7:pcre2-static","red_hat_enterprise_linux_7:pcre2-tools","red_hat_enterprise_linux_7:pcre2-utf16","red_hat_enterprise_linux_7:pcre2-utf32","red_hat_enterprise_linux_7:pcre2.src","red_hat_enterprise_linux_8:pcre2","red_hat_enterprise_linux_8:pcre2-devel","red_hat_enterprise_linux_8:pcre2-tools","red_hat_enterprise_linux_8:pcre2-utf16","red_hat_enterprise_linux_8:pcre2-utf32","red_hat_enterprise_linux_8:pcre2.src","red_hat_enterprise_linux_9:mingw32-pcre2","red_hat_enterprise_linux_9:mingw32-pcre2-static","red_hat_enterprise_linux_9:mingw64-pcre2","red_hat_enterprise_linux_9:mingw64-pcre2-static","red_hat_enterprise_linux_9:pcre2","red_hat_enterprise_linux_9:pcre2-devel","red_hat_enterprise_linux_9:pcre2-syntax","red_hat_enterprise_linux_9:pcre2-utf16","red_hat_enterprise_linux_9:pcre2-utf32","red_hat_enterprise_linux_9:pcre2.src","red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-8","red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-9"]}],"ids":[{"system_name":"Red Hat Bugzilla ID","text":"2391338"}],"notes":[{"category":"description","text":"In pcre2 library, there is a vulnerability in the code that causes a heap-buffer-overflow. This arises from using the special verb - Scan-SubString together with (*ACCEPT) which causes an out-of-bounds read. This could be exploited by an attacker through crafting a pattern using this combination to trigger the heap-buffer overflow.","title":"Vulnerability description"},{"category":"summary","text":"pcre2: PCRE2: heap-buffer-overflow read in match_ref due to missing boundary restoration in SCS","title":"Vulnerability summary"},{"category":"other","text":"The bug is in src/pcre2_match.c. When (*scs:...) temporarily restricts the match boundaries to a captured substring, the engine restores the current subject pointer (Feptr) correctly on an immediate (*ACCEPT), but it fails to restore mb->end_subject and mb->true_end_subject. If execution later calls match_ref (for example for a backreference like \\2), the bounds check can underflow because mb->end_subject - eptr becomes negative and is cast to an unsigned size. That makes the length check pass incorrectly and memcmp reads past the end of the allocated buffer, causing a heap-buffer-overflow read.","title":"Statement"},{"category":"general","text":"The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.","title":"CVSS score applicability"}],"product_status":{"known_not_affected":["red_hat_enterprise_linux_10:mingw32-pcre2","red_hat_enterprise_linux_10:mingw32-pcre2-static","red_hat_enterprise_linux_10:mingw64-pcre2","red_hat_enterprise_linux_10:mingw64-pcre2-static","red_hat_enterprise_linux_10:pcre2-devel","red_hat_enterprise_linux_10:pcre2-static","red_hat_enterprise_linux_10:pcre2-syntax","red_hat_enterprise_linux_10:pcre2-tools","red_hat_enterprise_linux_10:pcre2-utf16","red_hat_enterprise_linux_10:pcre2-utf32","red_hat_enterprise_linux_10:pcre2.src","red_hat_enterprise_linux_7:pcre2-devel","red_hat_enterprise_linux_7:pcre2-static","red_hat_enterprise_linux_7:pcre2-tools","red_hat_enterprise_linux_7:pcre2-utf16","red_hat_enterprise_linux_7:pcre2-utf32","red_hat_enterprise_linux_7:pcre2.src","red_hat_enterprise_linux_8:pcre2","red_hat_enterprise_linux_8:pcre2-devel","red_hat_enterprise_linux_8:pcre2-tools","red_hat_enterprise_linux_8:pcre2-utf16","red_hat_enterprise_linux_8:pcre2-utf32","red_hat_enterprise_linux_8:pcre2.src","red_hat_enterprise_linux_9:mingw32-pcre2","red_hat_enterprise_linux_9:mingw32-pcre2-static","red_hat_enterprise_linux_9:mingw64-pcre2","red_hat_enterprise_linux_9:mingw64-pcre2-static","red_hat_enterprise_linux_9:pcre2","red_hat_enterprise_linux_9:pcre2-devel","red_hat_enterprise_linux_9:pcre2-syntax","red_hat_enterprise_linux_9:pcre2-utf16","red_hat_enterprise_linux_9:pcre2-utf32","red_hat_enterprise_linux_9:pcre2.src","red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-8","red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-9"]},"references":[{"category":"self","summary":"Canonical URL","url":"https://access.redhat.com/security/cve/CVE-2025-58050"},{"category":"external","summary":"RHBZ#2391338","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2391338"},{"category":"external","summary":"https://www.cve.org/CVERecord?id=CVE-2025-58050","url":"https://www.cve.org/CVERecord?id=CVE-2025-58050"},{"category":"external","summary":"https://nvd.nist.gov/vuln/detail/CVE-2025-58050","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-58050"},{"category":"external","summary":"https://github.com/PCRE2Project/pcre2/commit/a141712e5967d448c7ce13090ab530c8e3d82254","url":"https://github.com/PCRE2Project/pcre2/commit/a141712e5967d448c7ce13090ab530c8e3d82254"},{"category":"external","summary":"https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.46","url":"https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.46"},{"category":"external","summary":"https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-c2gv-xgf5-5cc2","url":"https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-c2gv-xgf5-5cc2"}],"release_date":"2025-08-27T18:47:35.041000+00:00","scores":[{"cvss_v3":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","version":"3.1"},"products":["red_hat_enterprise_linux_10:mingw32-pcre2","red_hat_enterprise_linux_10:mingw32-pcre2-static","red_hat_enterprise_linux_10:mingw64-pcre2","red_hat_enterprise_linux_10:mingw64-pcre2-static","red_hat_enterprise_linux_10:pcre2-devel","red_hat_enterprise_linux_10:pcre2-static","red_hat_enterprise_linux_10:pcre2-syntax","red_hat_enterprise_linux_10:pcre2-tools","red_hat_enterprise_linux_10:pcre2-utf16","red_hat_enterprise_linux_10:pcre2-utf32","red_hat_enterprise_linux_10:pcre2.src","red_hat_enterprise_linux_7:pcre2-devel","red_hat_enterprise_linux_7:pcre2-static","red_hat_enterprise_linux_7:pcre2-tools","red_hat_enterprise_linux_7:pcre2-utf16","red_hat_enterprise_linux_7:pcre2-utf32","red_hat_enterprise_linux_7:pcre2.src","red_hat_enterprise_linux_8:pcre2","red_hat_enterprise_linux_8:pcre2-devel","red_hat_enterprise_linux_8:pcre2-tools","red_hat_enterprise_linux_8:pcre2-utf16","red_hat_enterprise_linux_8:pcre2-utf32","red_hat_enterprise_linux_8:pcre2.src","red_hat_enterprise_linux_9:mingw32-pcre2","red_hat_enterprise_linux_9:mingw32-pcre2-static","red_hat_enterprise_linux_9:mingw64-pcre2","red_hat_enterprise_linux_9:mingw64-pcre2-static","red_hat_enterprise_linux_9:pcre2","red_hat_enterprise_linux_9:pcre2-devel","red_hat_enterprise_linux_9:pcre2-syntax","red_hat_enterprise_linux_9:pcre2-utf16","red_hat_enterprise_linux_9:pcre2-utf32","red_hat_enterprise_linux_9:pcre2.src","red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-8","red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-9"]}],"threats":[{"category":"impact","details":"Moderate","product_ids":["red_hat_enterprise_linux_10:mingw32-pcre2","red_hat_enterprise_linux_10:mingw32-pcre2-static","red_hat_enterprise_linux_10:mingw64-pcre2","red_hat_enterprise_linux_10:mingw64-pcre2-static","red_hat_enterprise_linux_10:pcre2-devel","red_hat_enterprise_linux_10:pcre2-static","red_hat_enterprise_linux_10:pcre2-syntax","red_hat_enterprise_linux_10:pcre2-tools","red_hat_enterprise_linux_10:pcre2-utf16","red_hat_enterprise_linux_10:pcre2-utf32","red_hat_enterprise_linux_10:pcre2.src","red_hat_enterprise_linux_7:pcre2-devel","red_hat_enterprise_linux_7:pcre2-static","red_hat_enterprise_linux_7:pcre2-tools","red_hat_enterprise_linux_7:pcre2-utf16","red_hat_enterprise_linux_7:pcre2-utf32","red_hat_enterprise_linux_7:pcre2.src","red_hat_enterprise_linux_8:pcre2","red_hat_enterprise_linux_8:pcre2-devel","red_hat_enterprise_linux_8:pcre2-tools","red_hat_enterprise_linux_8:pcre2-utf16","red_hat_enterprise_linux_8:pcre2-utf32","red_hat_enterprise_linux_8:pcre2.src","red_hat_enterprise_linux_9:mingw32-pcre2","red_hat_enterprise_linux_9:mingw32-pcre2-static","red_hat_enterprise_linux_9:mingw64-pcre2","red_hat_enterprise_linux_9:mingw64-pcre2-static","red_hat_enterprise_linux_9:pcre2","red_hat_enterprise_linux_9:pcre2-devel","red_hat_enterprise_linux_9:pcre2-syntax","red_hat_enterprise_linux_9:pcre2-utf16","red_hat_enterprise_linux_9:pcre2-utf32","red_hat_enterprise_linux_9:pcre2.src","red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-8","red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-9"]}],"title":"pcre2: PCRE2: heap-buffer-overflow read in match_ref due to missing boundary restoration in SCS"}]}