Moderate: pcre2 security and enhancement update

Related Vulnerabilities: CVE-2019-20454   CVE-2019-20454   CVE-2019-20454  

Synopsis

Moderate: pcre2 security and enhancement update

Type/Severity

Security Advisory: Moderate

Topic

An update for pcre2 is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The pcre2 package contains a new generation of the Perl Compatible Regular Expression libraries for implementing regular expression pattern matching using the same syntax and semantics as Perl.

Security Fix(es):

  • pcre: Out of bounds read in JIT mode when \X is used in non-UTF mode (CVE-2019-20454)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux for x86_64 8 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 8 s390x
  • Red Hat Enterprise Linux for Power, little endian 8 ppc64le
  • Red Hat Enterprise Linux for ARM 64 8 aarch64
  • Red Hat CodeReady Linux Builder for x86_64 8 x86_64
  • Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le
  • Red Hat CodeReady Linux Builder for ARM 64 8 aarch64
  • Red Hat CodeReady Linux Builder for IBM z Systems 8 s390x

Fixes

  • BZ - 1735494 - CVE-2019-20454 pcre: Out of bounds read in JIT mode when \X is used in non-UTF mode
  • BZ - 1822698 - Add pcre2-tools package to CodeReady Builder repository

CVEs

References