CVE-2017-7482

Name: CVE-2017-7482
Creator: NVD / NIST
Published: 2018-07-30T14:29:02.99+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2017-7482 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.47%

37.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 3.2.90
Linux	Linux Kernel	>= 3.3, < 3.10.108
Linux	Linux Kernel	>= 3.11, < 3.16.45
Linux	Linux Kernel	>= 3.17, < 3.18.59
Linux	Linux Kernel	>= 3.19, < 4.1.43
Linux	Linux Kernel	>= 4.2, < 4.4.75
Linux	Linux Kernel	>= 4.5, < 4.9.35
Linux	Linux Kernel	>= 4.10, < 4.11.8
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Redhat	Enterprise Mrg	2.0

References

http://seclists.org/oss-sec/2017/q2/602Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/99299Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038787Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:0641Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482Issue Tracking, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0Patch, Vendor Advisory
https://www.debian.org/security/2017/dsa-3927Third Party Advisory
https://www.debian.org/security/2017/dsa-3945Third Party Advisory
http://seclists.org/oss-sec/2017/q2/602Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/99299Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038787Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:0641Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482Issue Tracking, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0Patch, Vendor Advisory
https://www.debian.org/security/2017/dsa-3927Third Party Advisory
https://www.debian.org/security/2017/dsa-3945Third Party Advisory

Timeline

Published: Jul 30, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-7482?

How severe is CVE-2017-7482?

CVE-2017-7482 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7482?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-7482?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST