SB2015083102 - Input validation error in Linux kernel
Published: August 31, 2015 Updated: August 9, 2020
Security Bulletin ID
SB2015083102
CSH Severity
Medium
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2015-5706)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 5.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows local users to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service or possibly have unspecified other impact via O_TMPFILE filesystem operations that leverage a duplicate cleanup operation.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f15133df088ecadd141ea1907f2c96df67c729f0
- http://twitter.com/grsecurity/statuses/597127122910490624
- http://www.debian.org/security/2015/dsa-3329
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.4
- http://www.openwall.com/lists/oss-security/2015/08/01/5
- http://www.securityfocus.com/bid/76142
- http://www.ubuntu.com/usn/USN-2680-1
- http://www.ubuntu.com/usn/USN-2681-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1250047
- https://github.com/torvalds/linux/commit/f15133df088ecadd141ea1907f2c96df67c729f0
- https://source.android.com/security/bulletin/2017-01-01.html