vulnwire
5.5med

CVE-2017-26711 exploit

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 can…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
5.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.5%
percentile 74%
Public exploits
1
Exploit-DB

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.

Exploit prediction (EPSS)

1.46% probability of exploitation in the next 30 days, higher than 74% of all scored CVEs.

Exploits and detections

  • EDB-42135 Linux Kernel - 'ping' Local Denial of Service · dos · 2017-06-07

CVSS scores

Assigned byVersionScoreVector
NVD3.05.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.04.9AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Technology feeds
Linux kernel (RSS, critical only)

References

  • securityfocus.com /bid/97407 · vdb-entry, x_refsource_BID, x_transferred
  • github.com /torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893 · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2017/04/04/8 · mailing-list, x_refsource_MLIST, x_transferred
  • access.redhat.com /errata/RHSA-2017:2669 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2018:1854 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • usn.ubuntu.com /3754-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • twitter.com /danieljiang0415/status/845116665184497664 · x_refsource_MISC, x_transferred
  • github.com /danieljiang0415/android_kernel_crash_poc · x_refsource_MISC, x_transferred
  • exploit-db.com /exploits/42135/ · exploit, x_refsource_EXPLOIT-DB, x_transferred
  • access.redhat.com /errata/RHSA-2017:2077 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:1842 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • git.kernel.org /pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.