vulnerability
Arch Linux: Denial of service (CVE-2025-49796)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:L/Au:N/C:N/I:C/A:C) | Jun 16, 2025 | Jul 11, 2025 | Jan 23, 2026 |
Severity
9
CVSS
(AV:N/AC:L/Au:N/C:N/I:C/A:C)
Published
Jun 16, 2025
Added
Jul 11, 2025
Modified
Jan 23, 2026
Description
A vulnerability causing undefined behavior was discovered in the Schematron in the libxml2. The issue arises in the xmlSchematronFormatReport function when processing sch:name elements, leading to memory corruption and undefined behavior when accessing namespace information.
Memory corruption occurs during namespace processing, resulting in the assignment of a corrupted pointer (0xffffffffffffffff) to node->ns. When the code attempts to access node->ns->prefix, it dereferences this invalid pointer, causing undefined behavior.
Memory corruption occurs during namespace processing, resulting in the assignment of a corrupted pointer (0xffffffffffffffff) to node->ns. When the code attempts to access node->ns->prefix, it dereferences this invalid pointer, causing undefined behavior.
Solution
arch-linux-upgrade-latest
References
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