CVE-2017-10661
HIGHCVSS 7/10EPSS 13.38%
Last modified
CVE-2017-10661 is a high-severity vulnerability rated 7/10 on the CVSS scale. Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.. EPSS estimates a 13.38% chance of exploitation in the next 30 days.
Description
Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.
Metrics
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 3.2.92 |
| Linux | Linux Kernel | >= 3.3, < 3.16.47 |
| Linux | Linux Kernel | >= 3.17, < 3.18.52 |
| Linux | Linux Kernel | >= 3.19, < 4.1.41 |
| Linux | Linux Kernel | >= 4.2, < 4.4.67 |
| Linux | Linux Kernel | >= 4.5, < 4.9.27 |
| Linux | Linux Kernel | >= 4.10, < 4.10.15 |
| Redhat | Enterprise Linux | 7.0 |
| Redhat | Enterprise Linux Aus | 7.4 |
| Redhat | Enterprise Linux Server Eus | 7.5 |
| Redhat | Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions | 7.4 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1e38da300e1e395a15048b0af1e5305bd91402f6Issue Tracking, Patch, Third Party Advisory
- http://www.debian.org/security/2017/dsa-3981Mailing List, Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.15Release Notes, Vendor Advisory
- http://www.securityfocus.com/bid/100215Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3083Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3096Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:4057Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:4058Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0036Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1481136Issue Tracking
- https://github.com/torvalds/linux/commit/1e38da300e1e395a15048b0af1e5305bd91402f6Issue Tracking, Patch, Third Party Advisory
- https://source.android.com/security/bulletin/2017-08-01Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/43345/Third Party Advisory, VDB Entry
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1e38da300e1e395a15048b0af1e5305bd91402f6Issue Tracking, Patch, Third Party Advisory
- http://www.debian.org/security/2017/dsa-3981Mailing List, Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.15Release Notes, Vendor Advisory
- http://www.securityfocus.com/bid/100215Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3083Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3096Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:4057Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:4058Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0036Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1481136Issue Tracking
- https://github.com/torvalds/linux/commit/1e38da300e1e395a15048b0af1e5305bd91402f6Issue Tracking, Patch, Third Party Advisory
- https://source.android.com/security/bulletin/2017-08-01Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/43345/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-10661?
Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.
How severe is CVE-2017-10661?
CVE-2017-10661 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 13.38% probability of exploitation in the next 30 days.
How do I fix CVE-2017-10661?
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-2017-10661?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST