CVE-2018-14404
Published: 19 July 2018
A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libxml2 Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
| bionic |
Released
(2.9.4+dfsg1-6.1ubuntu1.2)
|
|
| trusty |
Released
(2.9.1+dfsg1-3ubuntu4.13)
|
|
| upstream |
Released
(2.9.9)
|
|
| xenial |
Released
(2.9.3+dfsg1-1ubuntu0.6)
|
|
|
Patches: other: https://gitlab.gnome.org/GNOME/libxml2/commit/a436374994c47b12d5de1b8b1d191a098fa23594 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |