Test ID:	1.3.6.1.4.1.25623.1.0.892431
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-2431-1)
Summary:	The remote host is missing an update for the Debian 'libonig' package(s) announced via the DLA-2431-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'libonig' package(s) announced via the DLA-2431-1 advisory. Vulnerability Insight: Several vulnerabilities were discovered in the Oniguruma regular expressions library, notably used in PHP mbstring. CVE-2019-13224 A use-after-free in onig_new_deluxe() in regext.c allows attackers to potentially cause information disclosure, denial of service, or possibly code execution by providing a crafted regular expression. The attacker provides a pair of a regex pattern and a string, with a multi-byte encoding that gets handled by onig_new_deluxe(). CVE-2019-16163 Oniguruma allows Stack Exhaustion in regcomp.c because of recursion in regparse.c. CVE-2019-19012 An integer overflow in the search_in_range function in regexec.c in Onigurama leads to an out-of-bounds read, in which the offset of this read is under the control of an attacker. (This only affects the 32-bit compiled version). Remote attackers can cause a denial-of-service or information disclosure, or possibly have unspecified other impact, via a crafted regular expression. CVE-2019-19203 An issue was discovered in Oniguruma. In the function gb18030_mbc_enc_len in file gb18030.c, a UChar pointer is dereferenced without checking if it passed the end of the matched string. This leads to a heap-based buffer over-read. CVE-2019-19204 An issue was discovered in Oniguruma. In the function fetch_interval_quantifier (formerly known as fetch_range_quantifier) in regparse.c, PFETCH is called without checking PEND. This leads to a heap-based buffer over-read. CVE-2019-19246 Oniguruma has a heap-based buffer over-read in str_lower_case_match in regexec.c. CVE-2020-26159 In Oniguruma an attacker able to supply a regular expression for compilation may be able to overflow a buffer by one byte in concat_opt_exact_str in src/regcomp.c For Debian 9 stretch, these problems have been fixed in version 6.1.3-2+deb9u1. We recommend that you upgrade your libonig packages. For the detailed security status of libonig please refer to its security tracker page at: [link moved to references] Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references] Affected Software/OS: 'libonig' package(s) on Debian 9. Solution: Please install the updated package(s). CVSS Score: 7.5 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2019-13224 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SNL26OZSQRVLEO6JRNUVIMZTICXBNEQW/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JWCPDTZOIUKGMFAD5NAKUB7FPJFAIQN5/ https://security.gentoo.org/glsa/201911-03 https://lists.debian.org/debian-lts-announce/2019/07/msg00013.html https://usn.ubuntu.com/4088-1/ Common Vulnerability Exposure (CVE) ID: CVE-2019-16163 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZW47MSFZ6WYOAOFXHBDGU4LYACFRKC2Y/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NWOWZZNFSAWM3BUTQNAE3PD44A6JU4KE/ https://github.com/kkos/oniguruma/commit/4097828d7cc87589864fecf452f2cd46c5f37180 https://github.com/kkos/oniguruma/compare/v6.9.2...v6.9.3 https://github.com/kkos/oniguruma/issues/147 https://lists.debian.org/debian-lts-announce/2019/09/msg00010.html https://usn.ubuntu.com/4460-1/ Common Vulnerability Exposure (CVE) ID: CVE-2019-19012 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V3MBNW6Z4DOXSCNWGBLQ7OA3OGUJ44WL/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/ https://github.com/kkos/oniguruma/issues/164 https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2 https://github.com/tarantula-team/CVE-2019-19012 https://lists.debian.org/debian-lts-announce/2019/12/msg00002.html Common Vulnerability Exposure (CVE) ID: CVE-2019-19203 https://github.com/ManhNDd/CVE-2019-19203 https://github.com/kkos/oniguruma/issues/163 https://github.com/tarantula-team/CVE-2019-19203 Common Vulnerability Exposure (CVE) ID: CVE-2019-19204 https://github.com/ManhNDd/CVE-2019-19204 https://github.com/kkos/oniguruma/issues/162 https://github.com/tarantula-team/CVE-2019-19204 Common Vulnerability Exposure (CVE) ID: CVE-2019-19246 https://bugs.php.net/bug.php?id=78559 https://github.com/kkos/oniguruma/commit/d3e402928b6eb3327f8f7d59a9edfa622fec557b
Copyright	Copyright (C) 2020 Greenbone AG

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