CVE-2016-4998

 

Published at: - 03-07-2016 11:59

Last modified: - 26-10-2022 01:44

Total changes: - 3

Description

The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.

Common Vulnerability Scoring System (CVSS)

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

 

Verification logic

 

Reference

• [oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)-
• https://bugzilla.redhat.com/show_bug.cgi?id=1349886
• https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91
• USN-3017-2-Third Party Advisory
• USN-3018-2-Third Party Advisory
• USN-3016-4-Third Party Advisory
• USN-3016-1-Third Party Advisory
• USN-3016-2-Third Party Advisory
• USN-3016-3-Third Party Advisory
• USN-3018-1-Third Party Advisory
• USN-3019-1-Third Party Advisory
• USN-3017-3-Third Party Advisory
• USN-3020-1-Third Party Advisory
• USN-3017-1-Third Party Advisory
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
• http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
• openSUSE-SU-2016:2184-
• DSA-3607-
• 1036171-
• SUSE-SU-2016:2105-
• 91451-
• RHSA-2017:0036-
• RHSA-2016:1883-
• RHSA-2016:1875-
• RHSA-2016:1847-

 

Keywords

NVD

 

CVE-2016-4998

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures