CVE-2016-8645

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-11-28 · updated 2026-06-17
Weakness: CWE-284

Description

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.

Affected products

Linux kernel: through 4.8.9

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac6e780070e30e4c35bd395acfe9191e6268bdd3
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.10
http://www.openwall.com/lists/oss-security/2016/11/11/3
http://www.openwall.com/lists/oss-security/2016/11/30/3
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
https://bugzilla.redhat.com/show_bug.cgi?id=1393904
https://github.com/torvalds/linux/commit/ac6e780070e30e4c35bd395acfe9191e6268bdd3
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac6e780070e30e4c35bd395acfe9191e6268bdd3

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