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CVE-2017-16939

CVE-2017-16939

EPSS 2.1%
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.
Affected products
n/a · n/a
public PoCs found — 1
exploitdbwww.exploit-db.com/exploits/44049unverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1137b5e2529a8f5ca8ee709288ecba3e68044df2http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.htmlhttps://access.redhat.com/errata/RHSA-2018:1318https://access.redhat.com/errata/RHSA-2018:1355https://access.redhat.com/errata/RHSA-2019:1170https://access.redhat.com/errata/RHSA-2019:1190https://blogs.securiteam.com/index.php/archives/3535https://bugzilla.suse.com/show_bug.cgi?id=1069702http://seclists.org/fulldisclosure/2017/Nov/40https://github.com/torvalds/linux/commit/1137b5e2529a8f5ca8ee709288ecba3e68044df2https://lists.debian.org/debian-lts-announce/2017/12/msg00004.htmlhttps://www.debian.org/security/2018/dsa-4082