CVE - CVE-2017-2671

CVE-ID
CVE-2017-2671	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:42135 URL:https://www.exploit-db.com/exploits/42135/ MISC:97407 URL:http://www.securityfocus.com/bid/97407 MISC:RHSA-2017:1842 URL:https://access.redhat.com/errata/RHSA-2017:1842 MISC:RHSA-2017:2077 URL:https://access.redhat.com/errata/RHSA-2017:2077 MISC:RHSA-2017:2669 URL:https://access.redhat.com/errata/RHSA-2017:2669 MISC:RHSA-2018:1854 URL:https://access.redhat.com/errata/RHSA-2018:1854 MISC:USN-3754-1 URL:https://usn.ubuntu.com/3754-1/ MISC:[oss-security] 20170404 Re: Linux kernel ping socket / AF_LLC connect() sin_family race URL:http://openwall.com/lists/oss-security/2017/04/04/8 MISC:https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893 URL:https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893 MISC:https://github.com/danieljiang0415/android_kernel_crash_poc URL:https://github.com/danieljiang0415/android_kernel_crash_poc MISC:https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893 URL:https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893 MISC:https://twitter.com/danieljiang0415/status/845116665184497664 URL:https://twitter.com/danieljiang0415/status/845116665184497664
Assigning CNA
Red Hat, Inc.
Date Record Created
20161201	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20161201)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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