CVE-2018-17182
An issue was discovered in the Linux kernel through 4.18.8. The vmacache_flush_all function in mm/vmacache.c mishandles sequence number…
- 7.8HighCVSS base score
- 3.2%Exploitation in 30 daysEPSS · top 12% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
An issue was discovered in the Linux kernel through 4.18.8. The vmacache_flush_all function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations.
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. A reference of the record is tagged as an exploit.
Show the exploits2
Exploit-DB1 entry
- Linux Kernel - VMA Use-After-Free via Buggy vmacache_flush_all() Fastpath Local Privilege Escalation (Exploit-DB entry) (opens in a new tab)
EDB-ID 45497local, linuxpublished 26 Sept 2018Verified
References tagged exploit1 reference
- 45497 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
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
- 6 years later
· 6 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)
- 3.2% · top 12% 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
16
- USN-3776-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3776-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3777-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [debian-lts-announce] 20181003 [SECURITY] [DLA 1531-1] linux-4.9 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://security.netapp.com/advisory/ntap-20190204-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:3656 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://github.com/torvalds/linux/commit/7a9cdebdcc17e426fb5287e4a82db1dfe86339b2 (opens in a new tab)x_refsource_MISCx_transferred
- DSA-4308 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 105417 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 45497 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://www.openwall.com/lists/oss-security/2018/09/18/4 (opens in a new tab)x_refsource_MISCx_transferred
- 1041748 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- USN-3777-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 106503 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7a9cdebdcc17e426fb5287e4a82db1dfe86339b2 (opens in a new tab)x_refsource_MISCx_transferred
- USN-3777-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_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-2018-8956 (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-2018-17182)Record last updated .