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CVE-2017-2671
Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
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.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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A race condition leading to a NULL pointer dereference was found in the Linux kernel's Link Layer Control implementation. A local attacker with access to ping sockets could use this flaw to crash the system.
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.
CVE Modified by Red Hat, Inc.2/02/2023 11:18:15 AM
Action
Type
Old Value
New Value
Added
CVSS V3
Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Changed
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.
A race condition leading to a NULL pointer dereference was found in the Linux kernel's Link Layer Control implementation. A local attacker with access to ping sockets could use this flaw to crash the system.
OR
*cpe:2.3:o:linux:linux_kernel:4.10.8:*:*:*:*:*:*:* (and previous)
Added
CVSS V2
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Added
CVSS V3
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added
CWE
CWE-284
Changed
Reference Type
http://openwall.com/lists/oss-security/2017/04/04/8 No Types Assigned
http://openwall.com/lists/oss-security/2017/04/04/8 Mailing List, Third Party Advisory
Changed
Reference Type
http://www.securityfocus.com/bid/97407 No Types Assigned
http://www.securityfocus.com/bid/97407 Third Party Advisory, VDB Entry
Changed
Reference Type
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893 No Types Assigned
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893 Issue Tracking, Patch, Third Party Advisory
Changed
Reference Type
https://github.com/danieljiang0415/android_kernel_crash_poc No Types Assigned
https://github.com/danieljiang0415/android_kernel_crash_poc Third Party Advisory
Changed
Reference Type
https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893 No Types Assigned
https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893 Issue Tracking, Patch, Third Party Advisory
Changed
Reference Type
https://twitter.com/danieljiang0415/status/845116665184497664 No Types Assigned
https://twitter.com/danieljiang0415/status/845116665184497664 Third Party Advisory