CVE-2019-20838

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

https://bugs.gentoo.org/717920

https://www.pcre.org/original/changelog.txt

https://support.apple.com/kb/HT211931

http://seclists.org/fulldisclosure/2020/Dec/32

https://support.apple.com/kb/HT212147

http://seclists.org/fulldisclosure/2021/Feb/14

https://lists.apache.org/thread.html/[email protected]%3Cdev.mina.apache.org%3E

Details

Source: MITRE

Published: 2020-06-15

Updated: 2021-09-22

Type: CWE-125

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:*

Configuration 2

OR

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

Tenable Plugins

View all (11 total)

IDNameProductFamilySeverity
155397Oracle Linux 8 : pcre (ELSA-2021-4373)NessusOracle Linux Local Security Checks
medium
155223RHEL 7 : Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP10 (RHSA-2021:4614)NessusRed Hat Local Security Checks
critical
155134SUSE SLED12 / SLES12 Security Update : pcre (SUSE-SU-2021:3652-1)NessusSuSE Local Security Checks
high
155093RHEL 8 : pcre (RHSA-2021:4373)NessusRed Hat Local Security Checks
medium
155050CentOS 8 : pcre (CESA-2021:4373)NessusCentOS Local Security Checks
medium
154860openSUSE 15 Security Update : pcre (openSUSE-SU-2021:1441-1)NessusSuSE Local Security Checks
medium
154664openSUSE 15 Security Update : pcre (openSUSE-SU-2021:3529-1)NessusSuSE Local Security Checks
medium
154651SUSE SLED15 / SLES15 Security Update : pcre (SUSE-SU-2021:3529-1)NessusSuSE Local Security Checks
medium
146086macOS 10.14.x < 10.14.6 Security Update 2021-001 / 10.15.x < 10.15.7 Security Update 2021-001 / macOS 11.x < 11.2 (HT212147)NessusMacOS X Local Security Checks
high
143115macOS 11.0.x < 11.0.1NessusMacOS X Local Security Checks
high
138182Photon OS 3.0: Pcre PHSA-2020-3.0-0108NessusPhotonOS Local Security Checks
medium