CVE-2023-29469
Published: 12 April 2023
An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).
Priority
Status
Package | Release | Status |
---|---|---|
libxml2 Launchpad, Ubuntu, Debian |
bionic |
Released
(2.9.4+dfsg1-6.1ubuntu1.9)
|
focal |
Released
(2.9.10+dfsg-5ubuntu0.20.04.6)
|
|
jammy |
Released
(2.9.13+dfsg-1ubuntu0.3)
|
|
kinetic |
Released
(2.9.14+dfsg-1ubuntu0.2)
|
|
lunar |
Released
(2.9.14+dfsg-1.1ubuntu0.1)
|
|
trusty |
Released
(2.9.1+dfsg1-3ubuntu4.13+esm5)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
upstream |
Needs triage
|
|
xenial |
Released
(2.9.3+dfsg1-1ubuntu0.7+esm5)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
References
- https://access.redhat.com/security/cve/CVE-2023-29469
- https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4
- https://gitlab.gnome.org/GNOME/libxml2/-/commit/09a2dd453007f9c7205274623acdd73747c22d64
- https://ubuntu.com/security/notices/USN-6028-1
- https://ubuntu.com/security/notices/USN-6028-2
- https://www.cve.org/CVERecord?id=CVE-2023-29469
- NVD
- Launchpad
- Debian