CVE-1999-1021

N/A Unknown
Published: December 30, 1992 Modified: April 16, 2026
View on NVD

Description

NFS on SunOS 4.1 through 4.1.2 ignores the high order 16 bits in a 32 bit UID, which allows a local user to gain root access if the lower 16 bits are set to 0, as fixed by the NFS jumbo patch upgrade.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/117&type=0&nav=sec.sba
Source: cve@mitre.org
Patch
http://www.cert.org/advisories/CA-1992-15.html
Source: cve@mitre.org
Patch Third Party Advisory US Government Resource
http://www.securityfocus.com/bid/47
Source: cve@mitre.org
Patch Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/82
Source: cve@mitre.org
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/117&type=0&nav=sec.sba
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://www.cert.org/advisories/CA-1992-15.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory US Government Resource
http://www.securityfocus.com/bid/47
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/82
Source: af854a3a-2127-422b-91ae-364da2661108

8 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
0.1%
24th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

sun