CVE-2018-20533
Published: 28 December 2018
There is a NULL pointer dereference at ext/testcase.c (function testcase_str2dep_complex) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.
From the Ubuntu Security Team
It was discovered that libsolv incorrectly handled certain malformed input. An attacker could use this issue to cause libsolv to crash, resulting in a denial of service.
Priority
Status
Package | Release | Status |
---|---|---|
libsolv Launchpad, Ubuntu, Debian |
bionic |
Released
(0.6.30-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
cosmic |
Released
(0.6.35-2ubuntu0.18.10.1)
|
|
disco |
Released
(0.6.5-2ubuntu1)
|
|
eoan |
Released
(0.6.5-2ubuntu1)
|
|
focal |
Released
(0.6.5-2ubuntu1)
|
|
groovy |
Released
(0.6.5-2ubuntu1)
|
|
hirsute |
Released
(0.6.5-2ubuntu1)
|
|
impish |
Released
(0.6.5-2ubuntu1)
|
|
jammy |
Released
(0.6.5-2ubuntu1)
|
|
kinetic |
Released
(0.6.5-2ubuntu1)
|
|
lunar |
Released
(0.6.5-2ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(0.7.3)
|
|
xenial |
Released
(0.6.11-1.1ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
Patches: upstream: https://github.com/openSUSE/libsolv/commit/4830af9d979d3685de538b80fbeba51ad590525e |
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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |