vulnwire
7.5high

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…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
5.2%
percentile 92%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

5.15% probability of exploitation in the next 30 days, higher than 92% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.07.8AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • Linux kernel:

Classification

Weakness
  • CWE-476 NULL Pointer Dereference
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Technology feeds
Linux kernel (RSS, critical only)

References

  • rhn.redhat.com /errata/RHSA-2017-0323.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • git.kernel.org /pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f53dc67c5e7babafe239b93a11678b0e05be · x_refsource_CONFIRM, x_transferred
  • rhn.redhat.com /errata/RHSA-2017-0347.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • securitytracker.com /id/1037909 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=CVE-2017-2634 · x_refsource_CONFIRM, x_transferred
  • rhn.redhat.com /errata/RHSA-2017-0346.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • securityfocus.com /bid/96529 · vdb-entry, x_refsource_BID, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.