CVE-2017-16939
High
CVE-2017-16939
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.
Exploit probability
2.2%
Published
November 24, 2017
Required by
Not available
Last source change
April 16, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2017-16939
View original source
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.
05 / REFERENCES
Further evidence
- 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