CVE-2017-1000111
HighLinux kernel: heap out-of-bounds in AF_PACKET sockets. This new issue is analogous to previously disclosed CVE-2016-8655. In both cases, a socket option that changes socket state may race with safety checks in packet_set_ring. Previously with PACKET_VERSION. This time with PACKET_RESERVE. The solution is similar: lock the socket for the update. This issue may be exploitable, we did not investigate further. As this issue affects PF_PACKET sockets, it requires CAP_NET_RAW in the process namespace. But note that with user namespaces enabled, any process can create a namespace in which it has CAP_NET_RAW.
CVSS 3.1 score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-787CVE-2017-1000111 is a Out-of-bounds Write vulnerability
What is Out-of-bounds Write?
The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE
References
8 total-
Debian Securityhttp://www.debian.org/security/2017/dsa-3981Third Party Advisory
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Securityfocushttp://www.securityfocus.com/bid/100267Third Party Advisory VDB Entry
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Securitytrackerhttp://www.securitytracker.com/id/1039132Third Party Advisory VDB Entry
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Third Party Advisory
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Third Party Advisory
Frequently asked questions
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What is CVE-2017-1000111?
CVE-2017-1000111 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . CVE-2017-1000111 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2017-1000111?
CVE-2017-1000111 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2017-1000111?
Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-1000111 patch availability.
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Is CVE-2017-1000111 actively exploited?
No. CVE-2017-1000111 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.