CVE-2018-20534

Publication date 28 December 2018

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

** DISPUTED ** There is an illegal address access at ext/testcase.c in libsolv.a in libsolv through 0.7.2 that will cause a denial of service. NOTE: third parties dispute this issue stating that the issue affects the test suite and not the underlying library. It cannot be exploited in any real-world application.

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.

Status

Package Ubuntu Release Status
libsolv 23.04 lunar
Fixed 0.6.5-2ubuntu1
22.10 kinetic
Fixed 0.6.5-2ubuntu1
22.04 LTS jammy
Fixed 0.6.5-2ubuntu1
21.10 impish
Fixed 0.6.5-2ubuntu1
21.04 hirsute
Fixed 0.6.5-2ubuntu1
20.10 groovy
Fixed 0.6.5-2ubuntu1
20.04 LTS focal
Fixed 0.6.5-2ubuntu1
19.10 eoan
Fixed 0.6.5-2ubuntu1
19.04 disco
Fixed 0.6.5-2ubuntu1
18.10 cosmic
Fixed 0.6.35-2ubuntu0.18.10.1
18.04 LTS bionic
16.04 LTS xenial
14.04 LTS trusty Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libsolv

Severity score breakdown

Parameter Value
Base score 6.5 · Medium
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

References

Related Ubuntu Security Notices (USN)

Other references