CVE-2010-2524 Missing authorization in n/a

What is CVE-2010-2524?

CVE-2010-2524 is a high-severity missing authorization vulnerability in Canonical Ubuntu Linux, published on 8 Sep 2010. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The DNS resolution functionality in the CIFS implementation in the Linux kernel before 2.6.35, when CONFIG_CIFS_DFS_UPCALL is enabled, relies on a user's keyring for the dns_resolver upcall in the cifs.upcall userspace helper, which allows local users to spoof the results of DNS queries and perform arbitrary CIFS mounts via vectors involving an add_key call, related to a "cache stuffing" issue and MS-DFS referrals.

Which versions are affected by CVE-2010-2524?

It affects 5 products.

Products include Canonical Ubuntu Linux, Linux kernel, Suse Suse Linux Enterprise Desktop, Suse Suse Linux Enterprise Server, Vmware Esx.

How do I fix CVE-2010-2524?

Apply the vendor's patch.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2010-2524 being exploited?

There is no known exploitation of CVE-2010-2524 in the wild and no public exploit code.

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-gh3w-mmv8-hhv4.