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…
- 7.8HighCVSS base score
- 2.1%Exploitation in 30 daysEPSS · top 18% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- Linux Kernel (Ubuntu 17.04) - 'XFRM' Local Privilege Escalation (Exploit-DB entry) (opens in a new tab)
EDB-ID 44049local, linuxpublished 23 Nov 2017Not verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
n/a
- affected n/a
References
14
- DSA-4082 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [debian-lts-announce] 20171210 [SECURITY] [DLA 1200-1] linux security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- SUSE-SU-2018:0011 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://bugzilla.suse.com/show_bug.cgi?id=1069702 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/torvalds/linux/commit/1137b5e2529a8f5ca8ee709288ecba3e68044df2 (opens in a new tab)x_refsource_MISCx_transferred
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11 (opens in a new tab)x_refsource_MISCx_transferred
- http://seclists.org/fulldisclosure/2017/Nov/40 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2018:1355 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:1318 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 101954 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://blogs.securiteam.com/index.php/archives/3535 (opens in a new tab)x_refsource_MISCx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1137b5e2529a8f5ca8ee709288ecba3e68044df2 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2019:1170 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:1190 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2017-8108 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-16939)Record last updated .