CVE-2017-7482

In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0	Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482	Issue Tracking Patch Third Party Advisory
http://seclists.org/oss-sec/2017/q2/602	Mailing List Patch Third Party Advisory
https://www.debian.org/security/2017/dsa-3945	Third Party Advisory
https://www.debian.org/security/2017/dsa-3927	Third Party Advisory
http://www.securitytracker.com/id/1038787	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/99299	VDB Entry Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0641	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:a:redhat:enterprise_mrg:2.0:::::::*
	cpe:2.3:o:debian:debian_linux:8.0:::::::*

Information

Published : 2018-07-30 14:29

Updated : 2019-10-09 23:29

NVD link : CVE-2017-7482

Mitre link : CVE-2017-7482

JSON object : View

Products Affected

redhat

enterprise_mrg

linux

linux_kernel

debian

debian_linux

CWE

CWE-190

Integer Overflow or Wraparound

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