{"id":"CVE-2019-20454","state":"PUBLISHED","title":"An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \\X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PC","description":"An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \\X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c.","publishedAt":"2020-02-14T00:00:00.000Z","updatedAt":"2024-08-05T02:39:09.902Z","severity":{"score":5.1,"label":"Medium","version":"3.0","vector":"CVSS:3.0/AC:H/AV:L/A:H/C:N/I:N/PR:N/S:U/UI:N","source":"mitre"},"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://bugs.exim.org/show_bug.cgi?id=2421","https://bugs.php.net/bug.php?id=78338","https://vcs.pcre.org/pcre2?view=revision&revision=1092","https://bugzilla.redhat.com/show_bug.cgi?id=1735494","https://security.gentoo.org/glsa/202006-16","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/","https://lists.debian.org/debian-lts-announce/2023/03/msg00014.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:45:50.141Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2019/20xxx/CVE-2019-20454.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2019-20454","state":"PUBLISHED","datePublished":"2020-02-14T00:00:00.000Z","dateUpdated":"2024-08-05T02:39:09.902Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2020-02-14T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \\X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://bugs.exim.org/show_bug.cgi?id=2421"},{"url":"https://bugs.php.net/bug.php?id=78338"},{"url":"https://vcs.pcre.org/pcre2?view=revision&revision=1092"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1735494"},{"url":"https://security.gentoo.org/glsa/202006-16","name":"GLSA-202006-16","tags":["vendor-advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/","name":"FEDORA-2020-b11cf352bd","tags":["vendor-advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/03/msg00014.html","name":"[debian-lts-announce] 20230316 [SECURITY] [DLA 3363-1] pcre2 security update","tags":["mailing-list"]}],"metrics":[{"cvssV3_0":{"version":"3.0","vectorString":"CVSS:3.0/AC:H/AV:L/A:H/C:N/I:N/PR:N/S:U/UI:N","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":5.1,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2023-03-16T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://bugs.exim.org/show_bug.cgi?id=2421","tags":["x_transferred"]},{"url":"https://bugs.php.net/bug.php?id=78338","tags":["x_transferred"]},{"url":"https://vcs.pcre.org/pcre2?view=revision&revision=1092","tags":["x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1735494","tags":["x_transferred"]},{"url":"https://security.gentoo.org/glsa/202006-16","name":"GLSA-202006-16","tags":["vendor-advisory","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/","name":"FEDORA-2020-b11cf352bd","tags":["vendor-advisory","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/03/msg00014.html","name":"[debian-lts-announce] 20230316 [SECURITY] [DLA 3363-1] pcre2 security update","tags":["mailing-list","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-05T02:39:09.902Z"}}]}}}