CVE-2018-14404

A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.

A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.

A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.

A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.

• CVE-2018-14404: fix NULL pointer dereference in xmlXPathCompOpEval when AND/OR operator operates on an empty XPath stack
• CVE-2019-19956: fix memory leak in xmlParseBalancedChunkMemoryRecover when parsing NULL doc

• CVE-2018-14404: fix NULL pointer dereference in xmlXPathCompOpEval when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case
• CVE-2019-19956: fix memory leak in xmlParseBalancedChunkMemoryRecover related to newDoc->oldNs

A flaw was found in libxml2 2.9.8. The xz_decomp function in xzlib.c, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint (CVE-2018-9251, CVE-2018-14567).

A null pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 when parsing invalid XPath expression. Applications processing untrusted XSL format inputs with the use of libxml2 library may be vulnerable to denial of service attack due to crash of the application (CVE-2018-14404).

The libxml2 package has been updated to version 2.9.9 to fix these issues and other bugs.

The perl-XML-LibXML package has been rebuilt against the updated libxml2.

This update for rmt-server to version 1.1.1 fixes the following issues:

The following issues have been fixed:

• Fixed migration problems which caused some extensions / modules to be dropped (bsc#1118584, bsc#1118579)
• Fixed listing of mirrored products (bsc#1102193)
• Include online migration paths into offline migration (bsc#1117106)
• Sync products that do not have a base product (bsc#1109307)
• Fixed SLP auto discovery for RMT (bsc#1113760)

Update dependencies for security fixes:

• CVE-2018-16468: Update loofah to 2.2.3 (bsc#1113969)
• CVE-2018-16470: Update rack to 2.0.6 (bsc#1114831)
• CVE-2018-14404: Update nokogiri to 1.8.5 (bsc#1102046)

This update was imported from the SUSE:SLE-15:Update update project.

These are all security issues fixed in the rmt-server-2.6.13-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the libxml2-2-2.9.12-1.2 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the ruby2.7-rubygem-nokogiri-1.12.3-1.2 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the ruby3.1-rubygem-nokogiri-1.13.3-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the ruby3.2-rubygem-nokogiri-1.13.9-1.7 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the ruby3.3-rubygem-nokogiri-1.15.5-1.5 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the ruby3.4-rubygem-nokogiri-1.18.2-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the ruby4.0-rubygem-nokogiri-1.18.9-1.4 package on the GA media of openSUSE Tumbleweed.

This update for libxml2 fixes the following security issues:

• CVE-2018-9251: The xz_decomp function allowed remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint (bsc#1088279)
• CVE-2018-14567: Prevent denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint (bsc#1105166)
• CVE-2018-14404: Prevent NULL pointer dereference in the xmlXPathCompOpEval() function when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case leading to a denial of service attack (bsc#1102046)

This update for libxml2 fixes the following security issues:

• CVE-2018-9251: The xz_decomp function allowed remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint (bsc#1088279).
• CVE-2018-14567: Prevent denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint (bsc#1105166).
• CVE-2018-14404: Prevent NULL pointer dereference in the xmlXPathCompOpEval() function when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case leading to a denial of service attack (bsc#1102046).
• CVE-2017-18258: The xz_head function allowed remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality did not restrict memory usage to what is required for a legitimate file (bsc#1088601).

This update for rmt-server to version 1.1.1 fixes the following issues:

The following issues have been fixed:

• Fixed migration problems which caused some extensions / modules to be dropped (bsc#1118584, bsc#1118579)
• Fixed listing of mirrored products (bsc#1102193)
• Include online migration paths into offline migration (bsc#1117106)
• Sync products that do not have a base product (bsc#1109307)
• Fixed SLP auto discovery for RMT (bsc#1113760)

Update dependencies for security fixes:

• CVE-2018-16468: Update loofah to 2.2.3 (bsc#1113969)
• CVE-2018-16470: Update rack to 2.0.6 (bsc#1114831)
• CVE-2018-14404: Update nokogiri to 1.8.5 (bsc#1102046)

This update for libxml2 fixes the following issues:

Security issue fixed:

• CVE-2018-14404: Prevent NULL pointer dereference in the xmlXPathCompOpEval() function when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case leading to a denial of service attack (bsc#1102046)

Other Issue fixed:

• Fixed a bug related to the fix for CVE-2016-9318 which allowed xsltproc to access the internet even when --nonet was given and also was making docbook-xsl-stylesheets to have incomplete xml catalog file (bsc#1010675, bsc#1126613 and bsc#1110146).

Matias Brutti discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to expose sensitive information. (CVE-2016-9318)

It was discovered that libxml2 incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2017-16932)

It was discovered that libxml2 incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-18258, CVE-2018-14404, CVE-2018-14567)