CVE-2016-4557

7.8 HIGH
Published: May 23, 2016 Modified: May 06, 2026
View on NVD

Description

The replace_map_fd_with_map_ptr function in kernel/bpf/verifier.c in the Linux kernel before 4.5.5 does not properly maintain an fd data structure, which allows local users to gain privileges or cause a denial of service (use-after-free) via crafted BPF instructions that reference an incorrect file descriptor.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7
Source: cve@mitre.org
Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
Source: cve@mitre.org
Mailing List Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5
Source: cve@mitre.org
Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/05/06/4
Source: cve@mitre.org
Mailing List Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=808
Source: cve@mitre.org
Third Party Advisory
https://bugs.debian.org/823603
Source: cve@mitre.org
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1334307
Source: cve@mitre.org
Issue Tracking Third Party Advisory
https://github.com/torvalds/linux/commit/8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7
Source: cve@mitre.org
Vendor Advisory
https://www.exploit-db.com/exploits/40759/
Source: cve@mitre.org
Third Party Advisory VDB Entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/05/06/4
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=808
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://bugs.debian.org/823603
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1334307
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Third Party Advisory
https://github.com/torvalds/linux/commit/8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.exploit-db.com/exploits/40759/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry

18 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
19.5%
95th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

linux