CVE-2017-2671
Advisory lineage Upstream: 0 Downstream: 21
Modified
Published: 05 Apr 2017, 06:23
Last modified:05 Aug 2024, 14:02
Vulnerability Summary
Overall Risk (default)
medium
32/100 CVSS Score
5.5 MEDIUM
v3.0 (nvd)
EPSS Score
0.51% LOW
1% probability +0.26%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected
Timeline
05 Apr 2017, 06:23
Published
Vulnerability first disclosed
05 Aug 2024, 14:02
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C
EPSS Trends
Current EPSS score: 0.51%• Percentile: 67%
Affected Systems
- linux•linux_kernel
≤ 4.10.8
References (12)
- http://www.securityfocus.com/bid/97407
- https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893
- http://openwall.com/lists/oss-security/2017/04/04/8
- https://access.redhat.com/errata/RHSA-2017:2669
- https://access.redhat.com/errata/RHSA-2018:1854
- https://usn.ubuntu.com/3754-1/
- https://twitter.com/danieljiang0415/status/845116665184497664
- https://github.com/danieljiang0415/android_kernel_crash_poc
- https://www.exploit-db.com/exploits/42135/
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:1842
- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893