CVE-2016-8645

low-risk
Published 2016-11-28

The TCP stack in the Linux kernel before 4.8.10 mishandles skb truncation, which allows local users to cause a denial of service (system crash) via a crafted application that makes sendto system calls, related to net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c.

Do I need to act?

-
0.03% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (22)

Issue Tracking http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac6e78...
Release Notes http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.10
Mailing List http://www.openwall.com/lists/oss-security/2016/11/11/3
http://www.openwall.com/lists/oss-security/2016/11/30/3
Third Party Advisory http://www.securityfocus.com/bid/94264
http://www.securitytracker.com/id/1037285
https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/errata/RHSA-2017:2077
https://access.redhat.com/errata/RHSA-2017:2669
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1393904
Issue Tracking https://github.com/torvalds/linux/commit/ac6e780070e30e4c35bd395acfe9191e6268bdd...
Issue Tracking http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac6e78...
Release Notes http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.10
Mailing List http://www.openwall.com/lists/oss-security/2016/11/11/3
http://www.openwall.com/lists/oss-security/2016/11/30/3
Third Party Advisory http://www.securityfocus.com/bid/94264
http://www.securitytracker.com/id/1037285
https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/errata/RHSA-2017:2077
https://access.redhat.com/errata/RHSA-2017:2669
and 2 more references
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal