National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-4557 Detail

Current 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.

Source:  MITRE
View Analysis Description

Evaluator Description

CWE-416: Use After Free

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.8 HIGH
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5
http://www.openwall.com/lists/oss-security/2016/05/06/4
https://bugs.chromium.org/p/project-zero/issues/detail?id=808
https://bugs.debian.org/823603
https://bugzilla.redhat.com/show_bug.cgi?id=1334307
https://github.com/torvalds/linux/commit/8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7 Vendor Advisory
https://www.exploit-db.com/exploits/40759/

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-Other Other NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
4.5.4


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-4557
NVD Published Date:
05/23/2016
NVD Last Modified:
09/02/2017