CVE-2012-0943 Path traversal in n/a

What is CVE-2012-0943?

CVE-2012-0943 is a low-severity path traversal vulnerability in Canonical Ubuntu Linux, published on 22 May 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

debian/guest-account in Light Display Manager (lightdm) 1.0.x before 1.0.6 and 1.1.x before 1.1.7, as used in Ubuntu Linux 11.10, allows local users to delete arbitrary files via a space in the name of a file in /tmp. NOTE: this identifier was SPLIT per ADT1/ADT2 due to different codebases and affected versions. CVE-2012-6648 has been assigned for the gdm-guest-session issue.

Weakness: CWE-264

Which versions are affected by CVE-2012-0943?

It affects 2 products.

Products include Canonical Ubuntu Linux, Robert Ancell Lightdm.

How do I fix CVE-2012-0943?

No fix has been published for CVE-2012-0943 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2012-0943 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-0943 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-337g-q3wh-m8q8.