Summary
USN-7582-1 fixed a vulnerability in libxml2. This update provides the
corresponding fix for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and
Ubuntu 20.04 LTS.
Original advisory details:
It was discovered that libxslt, used by libxml2, incorrectly handled
certain attributes. An attacker could use this issue to cause a crash,
resulting in a denial of service, or possibly execute arbitrary code. This
update adds a fix to libxml2 to mitigate the libxslt vulnerability.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | libxml2 | 2.9.3+dfsg1-1ubuntu0.7+esm11 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | libxml2 | 2.9.4+dfsg1-6.1ubuntu1.9+esm6 |
| Ubuntu · Pro 20.04 LTS Pro:20.04:LTS | libxml2 | 2.9.10+dfsg-5ubuntu0.20.04.10+esm3 |
Vulnerabilities 1
-
High 7.8
Libxslt: libxml2: heap use-after-free in libxslt caused by atype corruption in xmlattrptr
A flaw was found in libxslt where the attribute type, atype, flags are modified in a way that corrupts internal memory management. When XSLT functions, such as the key() process, result in tree fragments, this corruption prevents the proper cleanup of ID attr…
References
-
report
https://ubuntu.com/security/CVE-2025-7425