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Vulnerability record · CVE-2017-7482 · published 30 July 2018

CVE-2017-7482: Linux kernel integer overflow vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.47% · top 61.8% CWE-190 · Integer overflow
7.8CVSS 3.1 base score, v2 7.2
0.47%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
16References
17 Jun 2026Last modified by NVD

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.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2017-7482), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.