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CVE-2017-7482

HIGH
7.8
CVSS Score
Published: July 30, 2018 at 02:00 PM UTC
Updated: June 17, 2026 at 01:24 AM UTC
3 products affected across 3 vendorsLinux KernelDebian LinuxEnterprise Mrg

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Severity
HIGH7.8
Exploit prediction
EPSS 0.5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
8.09.0
Linux Kernel· Linux
95%
v < 3.2.903.11 ≤ v < 3.16.453.17 ≤ v < 3.18.593.19 ≤ v < 4.1.433.3 ≤ v < 3.10.1084.10 ≤ v < 4.11.84.2 ≤ v < 4.4.754.5 ≤ v < 4.9.354.12
Affected range stops below 3.10.108, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.16.45, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.18.59, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.2.90, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.1.43, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.11.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.75, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.35, so it looks safe — our inference, not a vendor statement
Enterprise Mrg· Red Hat
95%
2.0

References (8)

Mailing Listx_refsource_MLISTPatchThird Party Advisory
Source: [email protected]
http://seclists.org/oss-sec/2017/q2/602
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/99299
VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1038787
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:0641
x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482
x_refsource_CONFIRMPatchVendor Advisory
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2017/dsa-3927
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2017/dsa-3945

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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