PT-2015-7139 · Linux+3 · Linux Kernel+3

Michael S. Tsirkin · Published 2015-08-12 · Updated 2017-11-04 · CVE-2015-6252

Positive Technologies (AI Summary)

CVSS v2.0

2.1

Low

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.1.5

Description The issue allows local users to cause a denial of service, specifically memory consumption, by making a VHOST SET LOG FD ioctl call that triggers permanent file-descriptor allocation. This occurs due to a problem in the vhost dev ioctl function in drivers/vhost/vhost.c.

Recommendations For Linux kernel versions prior to 4.1.5, update to version 4.1.5 or later to resolve the issue. As a temporary workaround, consider restricting access to the vhost dev ioctl function to minimize the risk of exploitation.

Exploit

Fix

DoS

Weakness Enumeration

CWE-399

Related Identifiers

ALT-PU-2015-1678

ALT-PU-2015-1849

CVE-2015-6252

DSA-3364-1

SUSE-SU-2015:1678-1

SUSE-SU-2015:1727-1

SUSE-SU-2015:2108-1

SUSE-SU-2015:2167-1

SUSE-SU-2016:0354-1

SUSE-SU-2016:2074-1

USN-2748-1

USN-2749-1

USN-2751-1

USN-2752-1

USN-2759-1

USN-2760-1

USN-2777-1

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 358

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/overlayfs_priv_esc.rb · Exploit
• 🔥 https://github.com/fi01/CVE-2015-3636 · Exploit
• 🔥 https://github.com/android-rooting-tools/libpingpong_exploit · Exploit
• 🔥 https://github.com/a7vinx/CVE-2015-3636 · Exploit
• 🔥 https://github.com/askk/libping_unhash_exploit_POC · Exploit
• 🔥 https://github.com/Kagami/docker_cve-2015-2925 · Exploit
• 🔥 https://github.com/hhj4ck/CVE-2016-2067 · Exploit
• 🔥 https://github.com/elit3pwner/CVE-2015-1328-GoldenEye · Exploit
• 🔥 https://github.com/0x1ns4n3/CVE-2015-1328-GoldenEye · Exploit
• 🔥 https://github.com/x1ns4n3/CVE-2015-1328-GoldenEye · Exploit
• 🔥 https://github.com/betalphafai/CVE-2015-0568 · Exploit
• 🔥 https://github.com/betalphafai/cve-2015-3636_crash · Exploit
• https://ubuntu.com/security/CVE-2015-6937 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2074-1 · Vendor Advisory
• http://ubuntu.com/usn/USN-2749-1 · Vendor Advisory