CVE-2009-1630 Auth bypass in n/a

What is CVE-2009-1630?

CVE-2009-1630 is a medium-severity authentication bypass vulnerability in Canonical Ubuntu Linux, published on 14 May 2009. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The nfs_permission function in fs/nfs/dir.c in the NFS client implementation in the Linux kernel 2.6.29.3 and earlier, when atomic_open is available, does not check execute (aka EXEC or MAY_EXEC) permission bits, which allows local users to bypass permissions and execute files, as demonstrated by files on an NFSv4 fileserver.

Weakness: CWE-264

Which versions are affected by CVE-2009-1630?

It affects 5 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Opensuse Opensuse, Vmware Esx.

How do I fix CVE-2009-1630?

Apply the vendor's patch.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2009-1630 being exploited?

There is no known exploitation of CVE-2009-1630 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-v8g3-vj55-5p7v.