CVE-2019-9579

HIGH
8.1
CVSS Score
Published: December 26, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 02:43 AM UTC
2 products affected across 2 vendorsSolarisIllumos· also runs on 1 platform

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Severity
HIGH8.1
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

An issue was discovered in Illumos in Nexenta NexentaStor 4.0.5 and 5.1.2, and other products. The SMB server allows an attacker to have unintended access, e.g., an attacker with WRITE_XATTR can change permissions. This occurs because of a combination of three factors: ZFS extended attributes are used to implement NT named streams, the SMB protocol requires implementations to have open handle semantics similar to those of NTFS, and the SMB server passes along certain attribute requests to the underlying object (i.e., they are not considered to be requests that pertain to the named stream).

Affected

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

All versions
nexenta-nexentastor (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

MitigationPatchVendor Advisory
https://www.illumos.org/issues/10506
x_refsource_MISCPatchThird Party Advisory
https://www.oracle.com/security-alerts/cpuapr2020.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-OtherCWE-276

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