Mageia 2020-0305: pcre2 security update

    Date 31 Jul 2020
    21
    Posted By LinuxSecurity Advisories
    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)
    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/This email address is being protected from spambots. You need JavaScript enabled to view it./thread/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20454
    
    SRPMS:
    - 7/core/pcre2-10.33-1.2.mga7
    

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