CVE catalog
CVE-2019-20454
pcre2: CVE-2019-20454
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.56% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | pcre2 | sid | 10.48-3.1 | fixed |
| Debian | pcre2 | forky | 10.48-3.1 | fixed |
| Debian | pcre2 | trixie | 10.46-1~deb13u2 | fixed |
| Debian | pcre2 | trixie-security | 10.46-1~deb13u3 | fixed |
| Debian | pcre2 | bookworm | 10.42-1 | fixed |
| Debian | pcre2 | bookworm-security | 10.42-1+deb12u2 | fixed |
| Ubuntu | pcre2 | pro | 10.22-3 | vulnerable |
| Ubuntu | pcre2 | pro | 10.22-4 | vulnerable |
| Ubuntu | pcre2 | pro | 10.22-5 | vulnerable |
| Ubuntu | pcre2 | pro | 10.22-6 | vulnerable |
| Ubuntu | pcre2 | pro | 10.31-2 | vulnerable |
| Ubuntu | pcre2 | pro | 10.31-2ubuntu0.1~esm1 | vulnerable |
| Opensuse | pcre2 | leap micro 5.2 | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise module for basesystem 15 sp3 | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise high performance computing 15-espos | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise high performance computing 15-ltss | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise high performance computing 15 sp1-espos | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise high performance computing 15 sp1-ltss | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise high performance computing 15 sp2-espos | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise high performance computing 15 sp2-ltss | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise server 15-ltss | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise server 15 sp1-bcl | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise server 15 sp1-ltss | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise server 15 sp2-bcl | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise server 15 sp2-ltss | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise server for sap applications 15 | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise server for sap applications 15 sp1 | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise server for sap applications 15 sp2 | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | manager proxy 4.1 | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | manager retail branch server 4.1 | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | manager server 4.1 | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise micro 5.1 | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | linux enterprise micro 5.2 | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | enterprise storage 6 | 10.31-150000.3.12.1 | fixed |
| Suse | pcre2 | enterprise storage 7 | 10.31-150000.3.12.1 | fixed |
| Opensuse | pcre2 | leap 15.3 | 10.31-150000.3.12.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | pcre2 | source | sid | 10.34-1 | not yet assigned | Not reported | Not reported |
| Debian | pcre2 | source | forky | 10.34-1 | not yet assigned | Not reported | Not reported |
| Debian | pcre2 | source | trixie | 10.34-1 | not yet assigned | Not reported | Not reported |
| Debian | pcre2 | source | bookworm | 10.34-1 | not yet assigned | Not reported | Not reported |
| Opensuse | pcre2 | rpm | leap micro 5.2 | 10.31-150000.3.12.1 | Not reported | OPENSUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise module for basesystem 15 sp3 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise high performance computing 15-espos | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise high performance computing 15-ltss | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise high performance computing 15 sp1-espos | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise high performance computing 15 sp1-ltss | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise high performance computing 15 sp2-espos | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise high performance computing 15 sp2-ltss | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise server 15-ltss | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise server 15 sp1-bcl | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise server 15 sp1-ltss | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise server 15 sp2-bcl | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise server 15 sp2-ltss | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise server for sap applications 15 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise server for sap applications 15 sp1 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise server for sap applications 15 sp2 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | manager proxy 4.1 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | manager retail branch server 4.1 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | manager server 4.1 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise micro 5.1 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | linux enterprise micro 5.2 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | enterprise storage 6 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Suse | pcre2 | rpm | enterprise storage 7 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
| Opensuse | pcre2 | rpm | leap 15.3 | 10.31-150000.3.12.1 | Not reported | SUSE-SU-2022:2649-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [libpcre2-16-0]Unknown
Source package: [pcre2]
Details (2)
10.42-1· amd64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
10.42-1· arm64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
- [libpcre2-32-0]Unknown
Source package: [pcre2]
Details (2)
10.42-1· amd64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
10.42-1· arm64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
- [libpcre2-8-0]Unknown
Source package: [pcre2]
Details (2)
10.42-1· amd64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
10.42-1· arm64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
- [libpcre2-dev]Unknown
Source package: [pcre2]
Details (2)
10.42-1· amd64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
10.42-1· arm64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
- [libpcre2-posix3]Unknown
Source package: [pcre2]
Details (2)
10.42-1· amd64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
10.42-1· arm64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
- [pcre2-utils]Unknown
Source package: [pcre2]
Details (2)
10.42-1· amd64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
10.42-1· arm64 · bookwormFixed · Fixed:
10.34-1dsa · pcre2 · debian · bookworm; dsa · pcre2 · debian · 12
[Debian 13 (Trixie)]
- [libpcre2-16-0]Unknown
Source package: [pcre2]
Details (3)
10.46-1~deb13u1· amd64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u1· arm64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
- [libpcre2-32-0]Unknown
Source package: [pcre2]
Details (3)
10.46-1~deb13u1· amd64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u1· arm64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
- [libpcre2-8-0]Unknown
Source package: [pcre2]
Details (3)
10.46-1~deb13u1· amd64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u1· arm64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
- [libpcre2-dev]Unknown
Source package: [pcre2]
Details (3)
10.46-1~deb13u1· amd64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u1· arm64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
- [libpcre2-posix3]Unknown
Source package: [pcre2]
Details (3)
10.46-1~deb13u1· amd64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u1· arm64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
- [pcre2-utils]Unknown
Source package: [pcre2]
Details (3)
10.46-1~deb13u1· amd64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u1· arm64 · trixieFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
10.46-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
10.34-1dsa · pcre2 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2020_3662.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-20454]
- [https://osv.dev/vulnerability/DLA-3363-1]
- [https://osv.dev/vulnerability/SUSE-SU-2022:2649-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-20454]
- [https://osv.dev/vulnerability/openSUSE-SU-2022:2649-1]
- [https://security-tracker.debian.org/tracker/CVE-2019-20454]
- [https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-20454.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2025-0227.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]