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CVE-2017-2671
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…
Medium5.5EPSS 1.5%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.5% · top 26% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (12)
- 97407 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20170404 Re: Linux kernel ping socket / AF_LLC connect() sin_family race (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2017:2669 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:1854 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3754-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://twitter.com/danieljiang0415/status/845116665184497664 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/danieljiang0415/android_kernel_crash_poc (opens in a new tab)x_refsource_MISCx_transferred
- 42135 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- RHSA-2017:2077 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:1842 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2017-2671)Record last updated .