What is CVE-2017-5546?

CVE-2017-5546 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2017-5546 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-5546?

CVE-2017-5546 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2017-5546?

No patch is currently available for CVE-2017-5546. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2017-5546 actively exploited?

CVE-2017-5546 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2017-5546

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 possibly have unspecified other impact in opportunistic circumstances by leveraging the selection of a large value for a random number.

Package Linux Kernel

Published 2017-02-06

Last modified 2026-05-13

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

The following references provide additional information about CVE-2017-5546 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel.org
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5

Release Notes Vendor Advisory
Securityfocus
http://www.securityfocus.com/bid/95711

Third Party Advisory VDB Entry
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4e490cf148e85ead0d1b1c2caaba833f1d5b29f
Patch
Kernel patch commit
http://www.openwall.com/lists/oss-security/2017/01/21/3
Patch
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=1415733
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2017-5546

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2017-02-06

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-5546?

CVE-2017-5546 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2017-5546 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-5546?

CVE-2017-5546 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2017-5546?

No patch is currently available for CVE-2017-5546. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2017-5546 actively exploited?

No — CVE-2017-5546 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.