CVE-2021-25317 cups: ownership of /var/log/cups allows the lp user to create files as root

What is CVE-2021-25317?

CVE-2021-25317 is a low-severity vulnerability in Fedoraproject Fedora, published on 5 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A Incorrect Default Permissions vulnerability in the packaging of cups of SUSE Linux Enterprise Server 11-SP4-LTSS, SUSE Manager Server 4.0, SUSE OpenStack Cloud Crowbar 9; openSUSE Leap 15.2, Factory allows local attackers with control of the lp users to create files as root with 0644 permissions without the ability to set the content. This issue affects: SUSE Linux Enterprise Server 11-SP4-LTSS cups versions prior to 1.3.9. SUSE Manager Server 4.0 cups versions prior to 2.2.7. SUSE OpenStack Cloud Crowbar 9 cups versions prior to 1.7.5. openSUSE Leap 15.2 cups versions prior to 2.2.7. openSUSE Factory cups version 2.3.3op2-2.1 and prior versions.

Weakness: CWE-276

Which versions are affected by CVE-2021-25317?

It affects 2 products.

Products include Fedoraproject Fedora, Suse Cups.

How do I fix CVE-2021-25317?

Apply the vendor's patch.

Is CVE-2021-25317 being exploited?

There is no known exploitation of CVE-2021-25317 in the wild and no public exploit code.

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All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as CLSA-2026-1787145903, GHSA-7qpc-9fjw-5c32, OESA-2021-1212, SUSE-SU-2021:1453-1, SUSE-SU-2021:1454-1, SUSE-SU-2021:14712-1 and 1 more.