CVE-2017-7533
HIGHCVSS 7/10EPSS 1.22%
Last modified
CVE-2017-7533 is a high-severity vulnerability rated 7/10 on the CVSS scale. Race condition in the fsnotify implementation in the Linux kernel through 4.12.4 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted application that leverages simultaneous execution of the inotify_handle_event and vfs_rename functions.. EPSS estimates a 1.22% chance of exploitation in the next 30 days.
Description
Race condition in the fsnotify implementation in the Linux kernel through 4.12.4 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted application that leverages simultaneous execution of the inotify_handle_event and vfs_rename functions.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.14, < 3.16.47 |
| Linux | Linux Kernel | >= 3.17, < 3.18.64 |
| Linux | Linux Kernel | >= 3.19, < 4.4.80 |
| Linux | Linux Kernel | >= 4.5, < 4.9.41 |
| Linux | Linux Kernel | >= 4.10, < 4.12.5 |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=49d31c2f389acfe83417083e1208422b4091cd9eIssue Tracking, Patch, Third Party Advisory
- http://openwall.com/lists/oss-security/2017/08/03/2Mailing List, Patch, Third Party Advisory
- http://www.debian.org/security/2017/dsa-3927Third Party Advisory
- http://www.debian.org/security/2017/dsa-3945Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/27/7Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/28/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/28/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/100123Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039075Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2473Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2585Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2669Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2770Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2869Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1468283Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/49d31c2f389acfe83417083e1208422b4091cd9eIssue Tracking, Patch, Third Party Advisory
- https://patchwork.kernel.org/patch/9755753/Issue Tracking, Patch, Third Party Advisory
- https://patchwork.kernel.org/patch/9755757/Issue Tracking, Patch, Third Party Advisory
- https://source.android.com/security/bulletin/2017-12-01Third Party Advisory
- https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg1408967.htmlThird Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=49d31c2f389acfe83417083e1208422b4091cd9eIssue Tracking, Patch, Third Party Advisory
- http://openwall.com/lists/oss-security/2017/08/03/2Mailing List, Patch, Third Party Advisory
- http://www.debian.org/security/2017/dsa-3927Third Party Advisory
- http://www.debian.org/security/2017/dsa-3945Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/27/7Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/28/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/28/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/100123Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039075Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2473Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2585Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2669Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2770Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2869Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1468283Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/49d31c2f389acfe83417083e1208422b4091cd9eIssue Tracking, Patch, Third Party Advisory
- https://patchwork.kernel.org/patch/9755753/Issue Tracking, Patch, Third Party Advisory
- https://patchwork.kernel.org/patch/9755757/Issue Tracking, Patch, Third Party Advisory
- https://source.android.com/security/bulletin/2017-12-01Third Party Advisory
- https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg1408967.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-7533?
Race condition in the fsnotify implementation in the Linux kernel through 4.12.4 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted application that leverages simultaneous execution of the inotify_handle_event and vfs_rename functions.
How severe is CVE-2017-7533?
CVE-2017-7533 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 1.22% probability of exploitation in the next 30 days.
How do I fix CVE-2017-7533?
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-2017-7533?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST