PT-2010-3298 · Linux · Linux Kernel

Dan Rosenberg · Published 2010-06-07 · Updated 2023-02-13 · CVE-2010-1636

Positive Technologies (AI Summary)

CVSS v2.0

2.1

Low

Base vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel versions 2.6.29 through 2.6.32

Description The issue arises from the btrfs ioctl clone function in fs/btrfs/ioctl.c, which does not verify if a cloned file descriptor is opened for reading. This oversight allows local users to access sensitive information from a file descriptor that is supposed to be write-only.

Recommendations For Linux kernel versions 2.6.29 through 2.6.32, consider restricting access to the btrfs ioctl clone function until a patch is available. As a temporary workaround, ensure that all file descriptors are properly validated to prevent unauthorized access. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2010-1636

Affected Products

Linux Kernel

References · 8

• 🔥 https://bugzilla.redhat.com/show_bug.cgi?id=593226 · Exploit
• 🔥 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/579585 · Exploit
• 🔥 https://exploit-db.com/exploits/34001 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2010-1636 · Security Note
• http://openwall.com/lists/oss-security/2010/05/18/2 · Patch
• http://openwall.com/lists/oss-security/2010/05/25/8 · Note
• http://openwall.com/lists/oss-security/2010/05/18/10 · Note
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=5dc6416414fb3ec6e2825fd4d20c8bf1d7fe0395 · Note