vulnwire
7.8high

CVE-2016-15751 exploit

The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
7.8
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.9%
percentile 61%
Public exploits
1
Exploit-DB

The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory.

Exploit prediction (EPSS)

0.92% probability of exploitation in the next 30 days, higher than 61% of all scored CVEs.

Exploits and detections

  • EDB-41762 Ubuntu 14.04/15.10 - User Namespace Overlayfs Xattr SetGID Privilege Escalation · local · 2016-11-22

CVSS scores

Assigned byVersionScoreVector
NVD3.17.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD2.07.2AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-269 Improper Privilege Management
Technology feeds
Linux kernel (RSS, critical only)

References

  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79 · x_refsource_MISC, x_transferred
  • people.canonical.com /~ubuntu-security/cve/2016/CVE-2016-1575.html · x_refsource_CONFIRM, x_transferred
  • launchpad.net /bugs/1534961 · x_refsource_CONFIRM, x_transferred
  • halfdog.net /Security/2016/UserNamespaceOverlayfsXattrSetgidPrivilegeEscalation/ · x_refsource_MISC, x_transferred
  • openwall.com /lists/oss-security/2016/02/24/7 · mailing-list, x_refsource_MLIST, x_transferred
  • openwall.com /lists/oss-security/2021/10/18/1 · mailing-list, x_refsource_MLIST, x_transferred

Sources

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