What is CVE-2017-7542?

CVE-2017-7542 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Integer Overflow flaw (CWE-190). CVE-2017-7542 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-7542?

CVE-2017-7542 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2017-7542?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-7542 patch availability.

Is CVE-2017-7542 actively exploited?

CVE-2017-7542 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/190.html

CVE-2017-7542

Medium

The ip6_find_1stfragopt function in net/ipv6/output_core.c in the Linux kernel through 4.12.3 allows local users to cause a denial of service (integer overflow and infinite loop) by leveraging the ability to open a raw socket.

Package Linux Kernel

Published 2017-07-21

Last modified 2026-05-13

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-190

CVE-2017-7542 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

References

12 total

Kernel Git
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6399f1fae4ec29fab5ec76070435555e256ca3a6

Issue Tracking Patch Third Party Advisory
GitHub
https://github.com/torvalds/linux/commit/6399f1fae4ec29fab5ec76070435555e256ca3a6

Issue Tracking Patch Third Party Advisory
Debian Security
http://www.debian.org/security/2017/dsa-3927
Debian Security
http://www.debian.org/security/2017/dsa-3945
Securityfocus
http://www.securityfocus.com/bid/99953

Showing 5 of 12 references View all on NVD

Details

CVE ID CVE-2017-7542

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.0

Published 2017-07-21

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-7542?

CVE-2017-7542 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Integer Overflow flaw (CWE-190) . CVE-2017-7542 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-7542?

CVE-2017-7542 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2017-7542?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-7542 patch availability.
Is CVE-2017-7542 actively exploited?

No. CVE-2017-7542 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.