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CVE-2022-1586: [SECURITY] Fedora 36 Update: pcre2-10.40-1.fc36 - package-announce

An out-of-bounds read vulnerability was discovered in the PCRE2 library in the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. This involves a unicode property matching issue in JIT-compiled regular expressions. The issue occurs because the character was not fully read in case-less matching within JIT.

CVE
#vulnerability#c++#perl

-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2022-e56085ba31 2022-05-12 20:24:55.994298 -------------------------------------------------------------------------------- Name : pcre2 Product : Fedora 36 Version : 10.40 Release : 1.fc36 URL : https://www.pcre.org/ Summary : Perl-compatible regular expression library Description : PCRE2 is a re-working of the original PCRE (Perl-compatible regular expression) library to provide an entirely new API. PCRE2 is written in C, and it has its own API. There are three sets of functions, one for the 8-bit library, which processes strings of bytes, one for the 16-bit library, which processes strings of 16-bit values, and one for the 32-bit library, which processes strings of 32-bit values. There are no C++ wrappers. This package provides support for strings in 8-bit and UTF-8 encodings. Install pcre2-utf16 or pcre2-utf32 packages for the other ones. The distribution does contain a set of C wrapper functions for the 8-bit library that are based on the POSIX regular expression API (see the pcre2posix man page). These can be found in a library called libpcre2posix. Note that this just provides a POSIX calling interface to PCRE2; the regular expressions themselves still follow Perl syntax and semantics. The POSIX API is restricted, and does not give full access to all of PCRE2’s facilities. -------------------------------------------------------------------------------- Update Information: Rebase to version 10.40 -------------------------------------------------------------------------------- ChangeLog: * Mon Apr 25 2022 Lukas Javorsky <ljavorsk(a)redhat.com> - 10.40-1 - Rebase to the 10.40 - Resolves multiple Out-of-bounds read errors -------------------------------------------------------------------------------- References: [ 1 ] Bug #2075955 - pcre2-10.40 is available https://bugzilla.redhat.com/show_bug.cgi?id=2075955 [ 2 ] Bug #2077986 - CVE-2022-1587 pcre2: Out-of-bounds read in get_recurse_data_length in pcre2_jit_compile.c [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2077986 [ 3 ] Bug #2077987 - CVE-2022-1586 pcre2: Out-of-bounds read in compile_xclass_matchingpath in pcre2_jit_compile.c [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2077987 -------------------------------------------------------------------------------- This update can be installed with the “dnf” update program. Use su -c ‘dnf upgrade --advisory FEDORA-2022-e56085ba31’ at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys --------------------------------------------------------------------------------

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Red Hat Security Advisory 2022-5251-01 - 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. Issues addressed include an out of bounds read vulnerability.

RHSA-2022:5251: Red Hat Security Advisory: pcre2 security update

An update for pcre2 is now available for Red Hat Enterprise Linux 9. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1586: pcre2: Out-of-bounds read in compile_xclass_matchingpath in pcre2_jit_compile.c * CVE-2022-1587: pcre2: Out-of-bounds read in get_recurse_data_length in pcre2_jit_compile.c

CVE-2022-1587: Fixed an issue affecting recursions in JIT · PCRE2Project/pcre2@03654e7

An out-of-bounds read vulnerability was discovered in the PCRE2 library in the get_recurse_data_length() function of the pcre2_jit_compile.c file. This issue affects recursions in JIT-compiled regular expressions caused by duplicate data transfers.

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