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CVE-2017-2671 Details

Description

The ping_unhash function in net/ipv4/ping.c in the Linux kernel through 4.10.8 is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe, which allows local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://openwall.com/lists/oss-security/2017/04/04/8	CVE	Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:1842	CVE
https://access.redhat.com/errata/RHSA-2017:2077	CVE
https://access.redhat.com/errata/RHSA-2017:2669	CVE
https://access.redhat.com/errata/RHSA-2018:1854	CVE
https://github.com/danieljiang0415/android_kernel_crash_poc	CVE	Third Party Advisory
https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893	CVE	Issue TrackingPatchThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893	CVE	Issue TrackingPatchThird Party Advisory
https://twitter.com/danieljiang0415/status/845116665184497664	CVE	Third Party Advisory
https://usn.ubuntu.com/3754-1/	CVE
https://www.exploit-db.com/exploits/42135/	CVE
http://www.securityfocus.com/bid/97407	CVE	Third Party AdvisoryVDB Entry
http://openwall.com/lists/oss-security/2017/04/04/8	[email protected]	Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:1842	[email protected]
https://access.redhat.com/errata/RHSA-2017:2077	[email protected]
https://access.redhat.com/errata/RHSA-2017:2669	[email protected]
https://access.redhat.com/errata/RHSA-2018:1854	[email protected]
https://github.com/danieljiang0415/android_kernel_crash_poc	[email protected]	Third Party Advisory
https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893	[email protected]	Issue TrackingPatchThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893	[email protected]	Issue TrackingPatchThird Party Advisory
https://twitter.com/danieljiang0415/status/845116665184497664	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3754-1/	[email protected]
https://www.exploit-db.com/exploits/42135/	[email protected]
http://www.securityfocus.com/bid/97407	[email protected]	Third Party AdvisoryVDB Entry

see all 24 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information to Classify Weakness	[email protected]

Affected Products

Product	Versions
linux linux kernel	<= 4.10.8
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.

Change History

14 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 12, 2023	CVE Modified	[email protected]
Feb 2, 2023	CVE Modified	[email protected]
Oct 3, 2019	CWE Remap	[email protected]
Aug 24, 2018	CVE Modified	[email protected]
Jun 20, 2018	CVE Modified	[email protected]
Jan 5, 2018	CVE Modified	[email protected]
Dec 31, 2017	CVE Modified	[email protected]
Aug 13, 2017	CVE Modified	[email protected]
Apr 11, 2017	Initial Analysis	[email protected]
Apr 7, 2017	CVE Modified	[email protected]