SB20240620153 - Improper locking in Linux kernel
Published: June 20, 2024
Security Bulletin ID
SB20240620153
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper locking (CVE-ID: CVE-2009-0935)
CWE-ID: CWE-667 - Improper Locking
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The inotify_read function in the Linux kernel 2.6.27 to 2.6.27.13, 2.6.28 to 2.6.28.2, and 2.6.29-rc3 allows local users to cause a denial of service (OOPS) via a read with an invalid address to an inotify instance, which causes the device's event list mutex to be unlocked twice and prevents proper synchronization of a data structure for the inotify instance.
Remediation
Install update from vendor's website.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=488935
- http://www.openwall.com/lists/oss-security/2009/03/06/2
- http://marc.info/?l=linux-kernel&m=123337123501681&w=2
- http://www.openwall.com/lists/oss-security/2009/03/19/2
- http://www.openwall.com/lists/oss-security/2009/03/18/5
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.3
- http://www.securityfocus.com/bid/33624
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49331