Denial of service in Linux kernel - CVE-2017-9077

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Main Vulnerability Database Vulnerabilities #VU7248

Denial of service in Linux kernel - CVE-2017-9077

Published: June 29, 2017 / Updated: July 3, 2017


Vulnerability identifier: #VU7248
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-9077
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to an error in the tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c. A local attacker can use specially crafted system calls to cause the system to crash.

Successful exploitation of the vulnerability results in denial of service.


Affected software

Linux kernel
SUSE Linux
Ubuntu
Fedora
kernel

How to mitigate CVE-2017-9077

Update to version 4.11.2.

kernel - addressed in versions 4.10.17-100.fc24, 4.10.17-200.fc25, 4.11.2-300.fc26, 4.11.3-101.fc24, 4.11.3-200.fc25, 4.11.4-100.fc24

External References

Related Security Bulletins