Vulnerability CVE-2017-16939
Published: 2017-11-24

Description:
The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel before 4.13.11 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages.

Type:

CWE-416

 (Use After Free)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Linux kernel 

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1137b5e2529a8f5ca8ee709288ecba3e68044df2
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
http://seclists.org/fulldisclosure/2017/Nov/40
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11
http://www.securityfocus.com/bid/101954
https://access.redhat.com/errata/RHSA-2018:1318
https://access.redhat.com/errata/RHSA-2018:1355
https://access.redhat.com/errata/RHSA-2019:1170
https://access.redhat.com/errata/RHSA-2019:1190
https://blogs.securiteam.com/index.php/archives/3535
https://bugzilla.suse.com/show_bug.cgi?id=1069702
https://github.com/torvalds/linux/commit/1137b5e2529a8f5ca8ee709288ecba3e68044df2
https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html
https://www.debian.org/security/2018/dsa-4082
Copyright 2024, cxsecurity.com

 

Back to Top