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CVE Record

CVE-2017-7482: In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly a...

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.

HighCVSS 7.1Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2017-7482 is a Linux kernel flaw in RXRPC Kerberos ticket decoding. A local authenticated user could potentially trigger memory corruption, leading to privilege escalation or system disruption. The issue is serious for systems that still run affected kernel builds, but the supplied sources do not show active exploitation. Exposure is most likely on older Linux systems or vendor kernels that did not receive the upstream fix or distro backport. Internet exposure is not indicated; the CVSS vector requires local privileges. Validate by kernel version and vendor advisory status, not only upstream version numbers. Prioritize remediation for older Linux servers that allow local users, shared workloads, or administrative shell access. This is not presented as remotely exploitable in the supplied evidence, but privilege escalation in the kernel can materially affect host integrity and availability. Mitigation focus: Apply vendor kernel updates that include the CVE-2017-7482 fix.; Use Debian and Red Hat advisories to identify corrected package streams.; Retire or isolate unsupported kernels that cannot receive security backports..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Privilege behavior lookup

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CVE-2017-7482 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.1 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.1CVSS 3.0HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H1.85.2Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.1High
CVSS 3.0 vector shape for CVE-2017-7482Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
[UNKNOWN]kernel:4.12Listed
Weakness

CWE details

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