libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://bugzilla.gnome.org/show_bug.cgi?id=772726 Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://github.com/lsh123/xmlsec/issues/43 Exploit, Patch, Third Party Advisory
- https://bugzilla.gnome.org/show_bug.cgi?id=772726 Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://github.com/lsh123/xmlsec/issues/43 Exploit, Patch, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.5 · xmlsoft, canonicalNVD modified 2026-10-14 07:16
Affected (CPE criteria) 5
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
References 15
- http://www.securityfocus.com/bid/94347 Third Party Advisory, VDB Entry
- https://bugzilla.gnome.org/show_bug.cgi?id=772726 Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://github.com/lsh123/xmlsec/issues/43 Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/04/msg00004.html
- https://security.gentoo.org/glsa/201711-01 Third Party Advisory
- https://usn.ubuntu.com/3739-1/ Third Party Advisory
- https://usn.ubuntu.com/3739-2/ Third Party Advisory
- http://www.securityfocus.com/bid/94347 Third Party Advisory, VDB Entry
- https://bugzilla.gnome.org/show_bug.cgi?id=772726 Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://github.com/lsh123/xmlsec/issues/43 Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/04/msg00004.html
- https://security.gentoo.org/glsa/201711-01 Third Party Advisory
- https://usn.ubuntu.com/3739-1/ Third Party Advisory
- https://usn.ubuntu.com/3739-2/ Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html