CVE - CVE-2017-5551

CVE-ID
CVE-2017-5551	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
The simple_set_acl function in fs/posix_acl.c in the Linux kernel before 4.9.6 preserves the setgid bit during a setxattr call involving a tmpfs filesystem, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-7097.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BID:95717 URL:http://www.securityfocus.com/bid/95717 CONFIRM:http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=497de07d89c1410d76a15bec2bb41f24a2a89f31 CONFIRM:http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.6 CONFIRM:https://bugzilla.redhat.com/show_bug.cgi?id=1416126 CONFIRM:https://github.com/torvalds/linux/commit/497de07d89c1410d76a15bec2bb41f24a2a89f31 DEBIAN:DSA-3791 URL:http://www.debian.org/security/2017/dsa-3791 MLIST:[oss-security] 20170120 Re: CVE REQUEST: linux kernel: process with pgid zero able to crash kernel URL:http://www.openwall.com/lists/oss-security/2017/01/21/3 SECTRACK:1038053 URL:http://www.securitytracker.com/id/1038053
Assigning CNA
MITRE Corporation
Date Record Created
20170120	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20170120)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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