CVE-2017-2634

Name: CVE-2017-2634
Creator: NVD / NIST
Published: 2018-07-27T19:29:00.58+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 5.18%

Last modified Jun 17, 2026

CVE-2017-2634 is a vulnerability of currently unknown severity. It was found that the Linux kernel's Datagram Congestion Control Protocol (DCCP) implementation before 2.6.22.17 used the IPv4-only inet_sk_rebuild_header() function for both IPv4 and IPv6 DCCP connections, which could result in memory corruptions. A remote attacker could use this flaw to crash the system.. EPSS estimates a 5.18% chance of exploitation in the next 30 days.

Description

It was found that the Linux kernel's Datagram Congestion Control Protocol (DCCP) implementation before 2.6.22.17 used the IPv4-only inet_sk_rebuild_header() function for both IPv4 and IPv6 DCCP connections, which could result in memory corruptions. A remote attacker could use this flaw to crash the system.

Metrics

EPSS Probability

5.18%

91.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 2.6.22.17
Redhat	Enterprise Linux Desktop	5.0
Redhat	Enterprise Linux Server	5.0
Redhat	Enterprise Linux Server Aus	5.6
Redhat	Enterprise Linux Server Aus	5.9
Redhat	Enterprise Linux Workstation	5.0

References

http://rhn.redhat.com/errata/RHSA-2017-0323.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0346.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0347.htmlThird Party Advisory
http://www.securityfocus.com/bid/96529Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037909Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2634Issue Tracking, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f53dc67c5e7babafe239b93a11678b0e05bead51Patch, Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0323.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0346.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0347.htmlThird Party Advisory
http://www.securityfocus.com/bid/96529Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037909Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2634Issue Tracking, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f53dc67c5e7babafe239b93a11678b0e05bead51Patch, Third Party Advisory

Timeline

Published: Jul 27, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-2634?

How severe is CVE-2017-2634?

Severity scoring for CVE-2017-2634 is pending analysis. The EPSS model estimates a 5.18% probability of exploitation in the next 30 days.

How do I fix CVE-2017-2634?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-2634?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST