4.4med

CVE-2016-7097

The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users t…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
4.4
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 34%
Public exploits
0
none known

Summary

The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.

Exploit prediction (EPSS)

0.39% probability of exploitation in the next 30 days, higher than 34% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.04.4CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD2.03.6AV:L/AC:L/Au:N/C:P/I:P/A:N

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • ubuntu.com /usn/USN-3146-2 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • ubuntu.com /usn/USN-3146-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • source.android.com /security/bulletin/2017-04-01 · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/92659 · vdb-entry, x_refsource_BID, x_transferred
  • access.redhat.com /errata/RHSA-2017:2669 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • spinics.net /lists/linux-fsdevel/msg98328.html · mailing-list, x_refsource_MLIST, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598c · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2016/08/26/3 · mailing-list, x_refsource_MLIST, x_transferred
  • rhn.redhat.com /errata/RHSA-2017-0817.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • ubuntu.com /usn/USN-3147-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=1368938 · x_refsource_CONFIRM, x_transferred
  • github.com /torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef · x_refsource_CONFIRM, 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
  • marc.info /?l=linux-fsdevel&m=147162313630259&w=2 · mailing-list, x_refsource_MLIST, x_transferred
  • securitytracker.com /id/1038201 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • support.f5.com /csp/article/K31603170?utm_source=f5support&amp%3Butm_medium=RSS · 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.