Vulnerability Description
The freelist-randomization feature in mm/slab.c in the Linux kernel 4.8.x and 4.9.x before 4.9.5 allows local users to cause a denial of service (duplicate freelist entries and system crash) or possibly have unspecified other impact in opportunistic circumstances by leveraging the selection of a large value for a random number.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.7, < 4.9.5 |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4e490Issue TrackingPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5Release NotesVendor Advisory
- http://www.openwall.com/lists/oss-security/2017/01/21/3Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/95711Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1415733Issue TrackingPatch
- https://github.com/torvalds/linux/commit/c4e490cf148e85ead0d1b1c2caaba833f1d5b29Issue TrackingPatchThird Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4e490Issue TrackingPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5Release NotesVendor Advisory
- http://www.openwall.com/lists/oss-security/2017/01/21/3Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/95711Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1415733Issue TrackingPatch
- https://github.com/torvalds/linux/commit/c4e490cf148e85ead0d1b1c2caaba833f1d5b29Issue TrackingPatchThird Party Advisory
FAQ
What is CVE-2017-5546?
CVE-2017-5546 is a vulnerability with a CVSS score of 7.8 (HIGH). The freelist-randomization feature in mm/slab.c in the Linux kernel 4.8.x and 4.9.x before 4.9.5 allows local users to cause a denial of service (duplicate freelist entries and system crash) or possib...
How severe is CVE-2017-5546?
CVE-2017-5546 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-5546?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.