What is CVE-2017-15126?

CVE-2017-15126 is a High severity Linux kernel vulnerability with a CVSS score of 8.1 out of 10, classified as a Buffer Overflow flaw (CWE-119). CVE-2017-15126 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-15126?

CVE-2017-15126 has a CVSS score of 8.1 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2017-15126?

No patch is currently available for CVE-2017-15126. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2017-15126 actively exploited?

CVE-2017-15126 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/119.html

CVE-2017-15126

High

A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events with userfaultfd_ctx_put().

Package Linux Kernel

Published 2018-01-14

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

8.1

out of 10

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-119

CVE-2017-15126 is a Buffer Overflow vulnerability

What is Buffer Overflow?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2017-15126 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Securityfocus
http://www.securityfocus.com/bid/102516

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHSA-2018:0676

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:1062

Third Party Advisory
Red Hat
https://access.redhat.com/security/cve/CVE-2017-15126

Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1523481

Issue Tracking Third Party Advisory
Kernel.org
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6

Vendor Advisory
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=384632e67e0829deb8015ee6ad916b180049d252
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/384632e67e0829deb8015ee6ad916b180049d252
Patch

Details

CVE ID CVE-2017-15126

Severity High

CVSS score 8.1 / 10

CVSS version 3.1

Published 2018-01-14

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-15126?

CVE-2017-15126 is a High severity Linux kernel vulnerability with a CVSS score of 8.1 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2017-15126 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-15126?

CVE-2017-15126 has a CVSS score of 8.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2017-15126?

No patch is currently available for CVE-2017-15126. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2017-15126 actively exploited?

No — CVE-2017-15126 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. View CWE-119 on MITRE CWE →