CLSA-2026-1789601022
See a problem?- Import Source
- https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1789601022.json
- JSON Data
- https://api.osv.dev/v1/vulns/CLSA-2026-1789601022
- Upstream
- Published
- 2026-09-16T23:23:57Z
- Modified
- 2026-10-26T09:32:02Z
- Summary
- Fix of 5 CVEs
- Details
-
- SECURITY UPDATE: stack buffer overflow in xmlSnprintfElements()
- debian/patches/CVE-2026-86140.patch: add bounds checks around the parenthesis writes in xmlSnprintfElements() in valid.c
- CVE-2026-86140
- SECURITY UPDATE: NULL pointer dereference in xmlRegNewParserCtxt() after
a failed allocation
- debian/patches/CVE-2026-86141.patch: check the xmlStrdup() result in xmlRegNewParserCtxt() in xmlregexp.c so a failed allocation cannot leave a NULL parser cursor
- CVE-2026-86141
- SECURITY UPDATE: heap buffer overflow in xmlXPtrEvalXPtrPart() on
oversized xpointer() expressions
- debian/patches/CVE-2026-86142.patch: make xmlStrlen() in xmlstring.c saturate above INT_MAX and reject the saturated length in xmlXPtrEvalXPtrPart() in xpointer.c before sizing the buffer
- CVE-2026-86142
- SECURITY UPDATE: integer overflow before the output write callback
- debian/patches/CVE-2026-86143.patch: check for integer overflow before passing a buffer length to the write callback in xmlIO.c
- CVE-2026-86143
- SECURITY UPDATE: parse flags not propagated by xmlXIncludeProcess() and
xmlXIncludeProcessTree()
- debian/patches/CVE-2026-86144.patch: propagate the document parse flags in xmlXIncludeProcess() and xmlXIncludeProcessTree() in xinclude.c
- CVE-2026-86144
- SECURITY UPDATE: stack buffer overflow in xmlSnprintfElements()
- References
-
- https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1789601022.html
- https://nvd.nist.gov/vuln/detail/CVE-2026-86140
- https://nvd.nist.gov/vuln/detail/CVE-2026-86141
- https://nvd.nist.gov/vuln/detail/CVE-2026-86142
- https://nvd.nist.gov/vuln/detail/CVE-2026-86143
- https://nvd.nist.gov/vuln/detail/CVE-2026-86144
Affected packages
TuxCare:Ubuntu:16.04 / libxml2
Package
- Name
- libxml2
- Purl
- pkg:deb/tuxcare/libxml2?distro=ubuntu-16.04
TuxCare:Ubuntu:16.04 / libxml2-dev
Package
- Name
- libxml2-dev
- Purl
- pkg:deb/tuxcare/libxml2-dev?distro=ubuntu-16.04
TuxCare:Ubuntu:16.04 / libxml2-doc
Package
- Name
- libxml2-doc
- Purl
- pkg:deb/tuxcare/libxml2-doc?distro=ubuntu-16.04
TuxCare:Ubuntu:16.04 / libxml2-utils
Package
- Name
- libxml2-utils
- Purl
- pkg:deb/tuxcare/libxml2-utils?distro=ubuntu-16.04