CVE-2019-20454
At a glance
- Source
- NVD
- EPSS
- EPSS 1.56 % · percentile 75 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-125 — Out-of-bounds Read
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
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 5.1 | CVSS:3.0/AC:H/AV:L/A:H/C:N/I:N/PR:N/S:U/UI:N | mitre |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | MEDIUM 5.1 | CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · cve@mitre.org (Secondary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-11000
- GCVE · GCVE-0-2019-20454
CERT-FR advisories
- CERTFR-2023-AVI-0701 — Multiples vulnérabilités dans Splunk · cert.ssi.gouv.fr
- CERTFR-2020-AVI-173 — Multiples vulnérabilités dans GitLab CE et EE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:pcre:pcre2:*:*:*:*:*:*:*:*≥ 10.31 < 10.34cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*≥ 8.2.0 < 8.2.12cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*≥ 9.0.0 < 9.0.6cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |