What is CVE-2017-2671?

CVE-2017-2671 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2017-2671 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-2671?

CVE-2017-2671 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2017-2671?

No patch is currently available for CVE-2017-2671. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2017-2671 actively exploited?

CVE-2017-2671 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2017-2671

Medium

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.

Package Linux Kernel

Published 2017-04-05

Last modified 2026-05-13

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

The following references provide additional information about CVE-2017-2671 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Openwall
http://openwall.com/lists/oss-security/2017/04/04/8

Mailing List Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/97407

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHSA-2017:1842
Red Hat
https://access.redhat.com/errata/RHSA-2017:2077
Red Hat
https://access.redhat.com/errata/RHSA-2017:2669
Red Hat
https://access.redhat.com/errata/RHSA-2018:1854
GitHub
https://github.com/danieljiang0415/android_kernel_crash_poc

Third Party Advisory
Twitter
https://twitter.com/danieljiang0415/status/845116665184497664

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3754-1/
Exploit-DB
https://www.exploit-db.com/exploits/42135/
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893
Patch

Details

CVE ID CVE-2017-2671

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.0

Published 2017-04-05

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-2671?

CVE-2017-2671 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2017-2671 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-2671?

CVE-2017-2671 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2017-2671?

No patch is currently available for CVE-2017-2671. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2017-2671 actively exploited?

No — CVE-2017-2671 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.