High severity · published Jul 27, 2018
CVE-2017-2634
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…
7.5
CVSS
5.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.2% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 2.6.22.17 · source: NVD
EL
Enterprise Linux Desktop · Redhat
5.0 · source: NVD
EL
Enterprise Linux Server · Redhat
5.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
5.6; 5.9 · source: NVD
EL
Enterprise Linux Workstation · Redhat
5.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-2634
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-2634
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0323.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0346.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0347.html
Third Party Advisory
http://www.securityfocus.com/bid/96529
Third Party Advisory
http://www.securitytracker.com/id/1037909
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2634
More from Kernel
9.8
CVE-2025-39682
tls: fix handling of zero-length records on the rx_list
8.8
CVE-2026-53266
netfilter: bridge: make ebt_snat ARP rewrite writable
8.8
CVE-2013-6282
Linux Kernel Improper Input Validation Vulnerability
8.4
CVE-2022-0185
Linux Kernel Heap-Based Buffer Overflow Vulnerability
8.4
CVE-2013-2094
Linux Kernel Privilege Escalation Vulnerability
