CVE-2018-17182
HIGHCVSS 7.8/10EPSS 3.21%
Last modified
CVE-2018-17182 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 3.21% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.16, < 3.16.58 |
| Linux | Linux Kernel | >= 3.17, < 3.18.123 |
| Linux | Linux Kernel | >= 3.19, < 4.4.157 |
| Linux | Linux Kernel | >= 4.5, < 4.9.128 |
| Linux | Linux Kernel | >= 4.10, < 4.14.71 |
| Linux | Linux Kernel | >= 4.15, < 4.18.9 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Netapp | Active Iq Performance Analytics Services | All versions |
| Netapp | Element Software | All versions |
References
- http://www.securityfocus.com/bid/105417Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/106503Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041748Patch, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3656Third Party Advisory
- https://github.com/torvalds/linux/commit/7a9cdebdcc17e426fb5287e4a82db1dfe86339b2Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.htmlThird Party Advisory
- https://security.netapp.com/advisory/ntap-20190204-0001/Patch, Third Party Advisory
- https://usn.ubuntu.com/3776-1/Third Party Advisory
- https://usn.ubuntu.com/3776-2/Third Party Advisory
- https://usn.ubuntu.com/3777-1/Third Party Advisory
- https://usn.ubuntu.com/3777-2/Third Party Advisory
- https://usn.ubuntu.com/3777-3/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4308Third Party Advisory
- https://www.exploit-db.com/exploits/45497/Exploit, Third Party Advisory, VDB Entry
- https://www.openwall.com/lists/oss-security/2018/09/18/4Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/105417Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/106503Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041748Patch, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3656Third Party Advisory
- https://github.com/torvalds/linux/commit/7a9cdebdcc17e426fb5287e4a82db1dfe86339b2Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.htmlThird Party Advisory
- https://security.netapp.com/advisory/ntap-20190204-0001/Patch, Third Party Advisory
- https://usn.ubuntu.com/3776-1/Third Party Advisory
- https://usn.ubuntu.com/3776-2/Third Party Advisory
- https://usn.ubuntu.com/3777-1/Third Party Advisory
- https://usn.ubuntu.com/3777-2/Third Party Advisory
- https://usn.ubuntu.com/3777-3/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4308Third Party Advisory
- https://www.exploit-db.com/exploits/45497/Exploit, Third Party Advisory, VDB Entry
- https://www.openwall.com/lists/oss-security/2018/09/18/4Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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 overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations.
How severe is CVE-2018-17182?
CVE-2018-17182 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 3.21% probability of exploitation in the next 30 days.
How do I fix CVE-2018-17182?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2018-17182?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST