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ALSA-2020:4539 Not scored

Moderate: pcre2 security and enhancement update

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 AlmaLinux Release Notes linked from the References section.

Exploit probability Not scored
Published November 3, 2020
Required by Not available
Last source change February 4, 2026

02 / AFFECTED SOFTWARE

Affected packages

AlmaLinux:8 pcre2
AlmaLinux:8 pcre2-devel
AlmaLinux:8 pcre2-tools
AlmaLinux:8 pcre2-utf16
AlmaLinux:8 pcre2-utf32

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities ALSA-2020:4539

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 AlmaLinux Release Notes linked from the References section.

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05 / REFERENCES

Further evidence