MGASA-2020-0305 - Updated pcre2 packages fix security vulnerability

Publication date: 31 Jul 2020
URL: https://advisories.mageia.org/MGASA-2020-0305.html
Type: security
Affected Mageia releases: 7
CVE: CVE-2019-20454

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. (CVE-2019-20454)

References:
- https://bugs.mageia.org/show_bug.cgi?id=26932
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20454

SRPMS:
- 7/core/pcre2-10.33-1.2.mga7

Mageia 2020-0305: pcre2 security update

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

Summary

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. (CVE-2019-20454)

References

- https://bugs.mageia.org/show_bug.cgi?id=26932

- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20454

Resolution

MGASA-2020-0305 - Updated pcre2 packages fix security vulnerability

SRPMS

- 7/core/pcre2-10.33-1.2.mga7

Severity
Publication date: 31 Jul 2020
URL: https://advisories.mageia.org/MGASA-2020-0305.html
Type: security
CVE: CVE-2019-20454

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