Security update for libxml2 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2021:14729-1 Final 1 1 2021-05-19T14:41:30Z current 2021-05-19T14:41:30Z 2021-05-19T14:41:30Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for libxml2 This update for libxml2 fixes the following issues: Security issues fixed: - CVE-2021-3537: NULL pointer dereference in valid.c:xmlValidBuildAContentModel (bsc#1185698) - CVE-2021-3518: Fixed a use after free in xinclude.c:xmlXIncludeDoProcess (bsc#1185408). - CVE-2021-3517: Fixed a heap based buffer overflow in entities.c:xmlEncodeEntitiesInternal (bsc#1185410). - CVE-2021-3516: Fixed a use after free in xmlEncodeEntitiesInternal() in entities.c (bsc#1185409) - CVE-2020-24977: Fixed a global-buffer-overflow in xmlEncodeEntitiesInternal (bsc#1176179). - CVE-2019-20388: Fixed a memory leak in xmlSchemaPreRun (bsc#1161521). - CVE-2020-7595: Fixed an infinite loop in an EOF situation (bsc#1161517). - CVE-2019-19956: Fixed a memory leak in xmlParseBalancedChunkMemoryRecover (bsc#1159928). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). sleposp3-libxml2-14729,slessp4-libxml2-14729 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2021/suse-su-202114729-1/ Link for SUSE-SU-2021:14729-1 https://lists.suse.com/pipermail/sle-security-updates/2021-May/008797.html E-Mail link for SUSE-SU-2021:14729-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1159928 SUSE Bug 1159928 https://bugzilla.suse.com/1161517 SUSE Bug 1161517 https://bugzilla.suse.com/1161521 SUSE Bug 1161521 https://bugzilla.suse.com/1176179 SUSE Bug 1176179 https://bugzilla.suse.com/1185408 SUSE Bug 1185408 https://bugzilla.suse.com/1185409 SUSE Bug 1185409 https://bugzilla.suse.com/1185410 SUSE Bug 1185410 https://bugzilla.suse.com/1185698 SUSE Bug 1185698 https://www.suse.com/security/cve/CVE-2014-0191/ SUSE CVE CVE-2014-0191 page https://www.suse.com/security/cve/CVE-2019-19956/ SUSE CVE CVE-2019-19956 page https://www.suse.com/security/cve/CVE-2019-20388/ SUSE CVE CVE-2019-20388 page https://www.suse.com/security/cve/CVE-2020-24977/ SUSE CVE CVE-2020-24977 page https://www.suse.com/security/cve/CVE-2020-7595/ SUSE CVE CVE-2020-7595 page https://www.suse.com/security/cve/CVE-2021-3516/ SUSE CVE CVE-2021-3516 page https://www.suse.com/security/cve/CVE-2021-3517/ SUSE CVE CVE-2021-3517 page https://www.suse.com/security/cve/CVE-2021-3518/ SUSE CVE CVE-2021-3518 page https://www.suse.com/security/cve/CVE-2021-3537/ SUSE CVE CVE-2021-3537 page SUSE Linux Enterprise Point of Sale 11 SP3 SUSE Linux Enterprise Server 11 SP4-LTSS libxml2-2.7.6-0.77.36.1 libxml2-doc-2.7.6-0.77.36.1 libxml2-python-2.7.6-0.77.36.1 libxml2-32bit-2.7.6-0.77.36.1 libxml2-2.7.6-0.77.36.1 as a component of SUSE Linux Enterprise Point of Sale 11 SP3 libxml2-doc-2.7.6-0.77.36.1 as a component of SUSE Linux Enterprise Point of Sale 11 SP3 libxml2-python-2.7.6-0.77.36.1 as a component of SUSE Linux Enterprise Point of Sale 11 SP3 libxml2-2.7.6-0.77.36.1 as a component of SUSE Linux Enterprise Server 11 SP4-LTSS libxml2-32bit-2.7.6-0.77.36.1 as a component of SUSE Linux Enterprise Server 11 SP4-LTSS libxml2-doc-2.7.6-0.77.36.1 as a component of SUSE Linux Enterprise Server 11 SP4-LTSS libxml2-python-2.7.6-0.77.36.1 as a component of SUSE Linux Enterprise Server 11 SP4-LTSS The xmlParserHandlePEReference function in parser.c in libxml2 before 2.9.2, as used in Web Listener in Oracle HTTP Server in Oracle Fusion Middleware 11.1.1.7.0, 12.1.2.0, and 12.1.3.0 and other products, loads external parameter entities regardless of whether entity substitution or validation is enabled, which allows remote attackers to cause a denial of service (resource consumption) via a crafted XML document. CVE-2014-0191 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-python-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-32bit-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-python-2.7.6-0.77.36.1 important 7.1 AV:N/AC:M/Au:N/C:N/I:N/A:C To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114729-1/ https://www.suse.com/security/cve/CVE-2014-0191.html CVE-2014-0191 https://bugzilla.suse.com/1014873 SUSE Bug 1014873 https://bugzilla.suse.com/1123919 SUSE Bug 1123919 https://bugzilla.suse.com/876652 SUSE Bug 876652 https://bugzilla.suse.com/877506 SUSE Bug 877506 https://bugzilla.suse.com/996079 SUSE Bug 996079 xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs. CVE-2019-19956 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-python-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-32bit-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-python-2.7.6-0.77.36.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114729-1/ https://www.suse.com/security/cve/CVE-2019-19956.html CVE-2019-19956 https://bugzilla.suse.com/1159928 SUSE Bug 1159928 https://bugzilla.suse.com/1191860 SUSE Bug 1191860 xmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak. CVE-2019-20388 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-python-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-32bit-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-python-2.7.6-0.77.36.1 low To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114729-1/ https://www.suse.com/security/cve/CVE-2019-20388.html CVE-2019-20388 https://bugzilla.suse.com/1161521 SUSE Bug 1161521 https://bugzilla.suse.com/1191860 SUSE Bug 1191860 GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e. CVE-2020-24977 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-python-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-32bit-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-python-2.7.6-0.77.36.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114729-1/ https://www.suse.com/security/cve/CVE-2020-24977.html CVE-2020-24977 https://bugzilla.suse.com/1176179 SUSE Bug 1176179 https://bugzilla.suse.com/1191860 SUSE Bug 1191860 xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation. CVE-2020-7595 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-python-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-32bit-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-python-2.7.6-0.77.36.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114729-1/ https://www.suse.com/security/cve/CVE-2020-7595.html CVE-2020-7595 https://bugzilla.suse.com/1161517 SUSE Bug 1161517 https://bugzilla.suse.com/1191860 SUSE Bug 1191860 There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability. CVE-2021-3516 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-python-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-32bit-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-python-2.7.6-0.77.36.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114729-1/ https://www.suse.com/security/cve/CVE-2021-3516.html CVE-2021-3516 https://bugzilla.suse.com/1185409 SUSE Bug 1185409 https://bugzilla.suse.com/1191860 SUSE Bug 1191860 There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application. CVE-2021-3517 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-python-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-32bit-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-python-2.7.6-0.77.36.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114729-1/ https://www.suse.com/security/cve/CVE-2021-3517.html CVE-2021-3517 https://bugzilla.suse.com/1185410 SUSE Bug 1185410 https://bugzilla.suse.com/1191860 SUSE Bug 1191860 https://bugzilla.suse.com/1194438 SUSE Bug 1194438 https://bugzilla.suse.com/1196383 SUSE Bug 1196383 There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability. CVE-2021-3518 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-python-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-32bit-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-python-2.7.6-0.77.36.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114729-1/ https://www.suse.com/security/cve/CVE-2021-3518.html CVE-2021-3518 https://bugzilla.suse.com/1185408 SUSE Bug 1185408 https://bugzilla.suse.com/1191860 SUSE Bug 1191860 A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability. CVE-2021-3537 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Point of Sale 11 SP3:libxml2-python-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-32bit-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-doc-2.7.6-0.77.36.1 SUSE Linux Enterprise Server 11 SP4-LTSS:libxml2-python-2.7.6-0.77.36.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114729-1/ https://www.suse.com/security/cve/CVE-2021-3537.html CVE-2021-3537 https://bugzilla.suse.com/1185698 SUSE Bug 1185698