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?

No patch is currently available for CVE-2017-7542. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

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

The following references provide additional information about CVE-2017-7542 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

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
Red Hat
https://access.redhat.com/errata/RHSA-2017:2918
Red Hat
https://access.redhat.com/errata/RHSA-2017:2930
Red Hat
https://access.redhat.com/errata/RHSA-2017:2931
Red Hat
https://access.redhat.com/errata/RHSA-2018:0169
Help
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
Ubuntu Security
https://usn.ubuntu.com/3583-1/
Ubuntu Security
https://usn.ubuntu.com/3583-2/
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6399f1fae4ec29fab5ec76070435555e256ca3a6
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/6399f1fae4ec29fab5ec76070435555e256ca3a6
Patch

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?

No patch is currently available for CVE-2017-7542. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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.
What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. View CWE-190 on MITRE CWE →