CVE-2017-7482 Detail

Current Description

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.


View Analysis Description

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

Nist CVSS score does not match with CNA score
CNA:  Red Hat, Inc.
Base Score:  7.1 HIGH
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-190 Integer Overflow or Wraparound cwe source acceptance level NIST   Reference acceptance level Red Hat, Inc.  

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-7482
NVD Published Date:
07/30/2018
NVD Last Modified:
10/09/2019
Source:
Red Hat, Inc.