What’s Vulnerable › Vulnerabilities

CVE-2011-0463

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2011-04-10 · updated 2026-06-16
• Weakness: CWE-20

Description

The ocfs2_prepare_page_for_write function in fs/ocfs2/aops.c in the Oracle Cluster File System 2 (OCFS2) subsystem in the Linux kernel before 2.6.39-rc1 does not properly handle holes that cross page boundaries, which allows local users to obtain potentially sensitive information from uninitialized disk locations by reading a file.

Affected products

• Canonical Ubuntu Linux: 8.04
• Linux kernel: through 2.6.38.2

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=272b62c1f0f6f742046e45b50b6fec98860208a0
• http://oss.oracle.com/pipermail/ocfs2-devel/2011-February/007846.html
• http://secunia.com/advisories/43966
• http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.39-rc1
• http://www.ubuntu.com/usn/USN-1146-1
• https://bugzilla.novell.com/show_bug.cgi?id=673037
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=272b62c1f0f6f742046e45b50b6fec98860208a0
• http://oss.oracle.com/pipermail/ocfs2-devel/2011-February/007846.html
• http://secunia.com/advisories/43966
• http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.39-rc1
• http://www.ubuntu.com/usn/USN-1146-1
• https://bugzilla.novell.com/show_bug.cgi?id=673037

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