CVE-2019-20838
Summary
| CVE | CVE-2019-20838 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-06-15 17:15:09 UTC |
| Updated | 2026-10-08 22:16:54 UTC |
| Description | libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454. |
Risk And Classification
Primary CVSS: v3.1 7.5 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Problem Types: CWE-125 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:M/Au:N/C:N/I:N/A:P
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Full Disclosure: APPLE-SA-2020-12-14-4 Additional information for APPLE-SA-2020-11-13-1 macOS Big Sur 11.0.1 | af854a3a-2127-422b-91ae-364da2661108 | seclists.org | Mailing List, Third Party Advisory |
| About the security content of macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave - Apple Support | af854a3a-2127-422b-91ae-364da2661108 | support.apple.com | Vendor Advisory |
| www.pcre.org/original/changelog.txt | af854a3a-2127-422b-91ae-364da2661108 | www.pcre.org | Release Notes, Vendor Advisory |
| About the security content of macOS Big Sur 11.0.1 - Apple Support | af854a3a-2127-422b-91ae-364da2661108 | support.apple.com | Vendor Advisory |
| Full Disclosure: APPLE-SA-2021-02-01-1 macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave | af854a3a-2127-422b-91ae-364da2661108 | seclists.org | Mailing List, Third Party Advisory |
| 717920 – (CVE-2019-20838, CVE-2020-14155) <dev-libs/libpcre-8.44: Multiple vulnerabilities (CVE-2019-20838, CVE-2020-14155) | af854a3a-2127-422b-91ae-364da2661108 | bugs.gentoo.org | Issue Tracking, Patch, Third Party Advisory, VDB Entry |
| lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685a... | af854a3a-2127-422b-91ae-364da2661108 | lists.apache.org | Mailing List, Third Party Advisory |
| Pony Mail! | MITRE | lists.apache.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 159497 Oracle Enterprise Linux Security Update for pcre (ELSA-2021-4373)
- 198789 Ubuntu Security Notification for PCRE Vulnerabilities (USN-5425-1)
- 239835 Red Hat Update for pcre (RHSA-2021:4373)
- 239865 Red Hat Update for red hat jboss core services apache Hypertext Transfer Protocol (HTTP) server 2.4.37 sp10 (RHSA-2021:4614)
- 378883 Splunk Enterprise August Third Party Package Updates (SVD-2023-0808)
- 751288 OpenSUSE Security Update for pcre (openSUSE-SU-2021:3529-1)
- 751317 OpenSUSE Security Update for pcre (openSUSE-SU-2021:1441-1)
- 751361 SUSE Enterprise Linux Security Update for pcre (SUSE-SU-2021:3652-1)
- 900129 CBL-Mariner Linux Security Update for pcre 8.42
- 903163 Common Base Linux Mariner (CBL-Mariner) Security Update for pcre (1821)
- 940117 AlmaLinux Security Update for pcre (ALSA-2021:4373)
- 960410 Rocky Linux Security Update for pcre (RLSA-2021:4373)