Packages
- libxml2 - GNOME XML library
Details
Ahmed Lekssays discovered that libxml2 did not properly perform certain
mathematical operations, leading to an integer overflow. An attacker
could possibly use this issue to cause a crash, resulting in a denial of
service, or possibly execute arbitrary code. (CVE-2025-6021)
Ahmed Lekssays discovered that libxml2 did not properly validate the size
of an untrusted input stream. An attacker could possibly use this issue
to cause a crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2025-6170)
Nikita Sveshnikov discovered that libxml2 did not properly handle certain
XPath expressions, leading to a use-after-free vulnerability. An attacker
could potentially exploit this issue to cause a denial of service.
(CVE-2025-49794)
Nikita Sveshnikov discovered that libxml2 contained a type...
Ahmed Lekssays discovered that libxml2 did not properly perform certain
mathematical operations, leading to an integer overflow. An attacker
could possibly use this issue to cause a crash, resulting in a denial of
service, or possibly execute arbitrary code. (CVE-2025-6021)
Ahmed Lekssays discovered that libxml2 did not properly validate the size
of an untrusted input stream. An attacker could possibly use this issue
to cause a crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2025-6170)
Nikita Sveshnikov discovered that libxml2 did not properly handle certain
XPath expressions, leading to a use-after-free vulnerability. An attacker
could potentially exploit this issue to cause a denial of service.
(CVE-2025-49794)
Nikita Sveshnikov discovered that libxml2 contained a type confusion
vulnerability when parsing specially crafted XML documents. An attacker
could potentially exploit this issue to cause a denial of service.
(CVE-2025-49796)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 25.04 plucky | libxml2 – 2.12.7+dfsg+really2.9.14-0.4ubuntu0.2 | ||
| python3-libxml2 – 2.12.7+dfsg+really2.9.14-0.4ubuntu0.2 | |||
| 24.04 noble | libxml2 – 2.9.14+dfsg-1.3ubuntu3.4 | ||
| python3-libxml2 – 2.9.14+dfsg-1.3ubuntu3.4 | |||
| 22.04 jammy | libxml2 – 2.9.13+dfsg-1ubuntu0.8 | ||
| python3-libxml2 – 2.9.13+dfsg-1ubuntu0.8 | |||
| 20.04 focal | libxml2 – 2.9.10+dfsg-5ubuntu0.20.04.10+esm1 | ||
| python3-libxml2 – 2.9.10+dfsg-5ubuntu0.20.04.10+esm1 | |||
| 18.04 bionic | libxml2 – 2.9.4+dfsg1-6.1ubuntu1.9+esm4 | ||
| python-libxml2 – 2.9.4+dfsg1-6.1ubuntu1.9+esm4 | |||
| python3-libxml2 – 2.9.4+dfsg1-6.1ubuntu1.9+esm4 | |||
| 16.04 xenial | libxml2 – 2.9.3+dfsg1-1ubuntu0.7+esm9 | ||
| python-libxml2 – 2.9.3+dfsg1-1ubuntu0.7+esm9 | |||
| 14.04 trusty | libxml2 – 2.9.1+dfsg1-3ubuntu4.13+esm8 | ||
| python-libxml2 – 2.9.1+dfsg1-3ubuntu4.13+esm8 | |||
Reduce your security exposure
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