Unrated severityNVD Advisory· Published Dec 30, 1992· Updated Jun 16, 2026
CVE-1999-1021
CVE-1999-1021
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.
Affected products
4cpe:2.3:o:sun:sunos:4.1:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:sun:sunos:4.1:*:*:*:*:*:*:*
- cpe:2.3:o:sun:sunos:4.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:sun:sunos:4.1.2:*:*:*:*:*:*:*
- (no CPE)range: >=4.1, <=4.1.2
Patches
Vulnerability mechanics
References
4- sunsolve.sun.com/pub-cgi/retrieve.plnvdPatch
- www.cert.org/advisories/CA-1992-15.htmlnvdPatchThird Party AdvisoryUS Government Resource
- www.securityfocus.com/bid/47nvdPatchVendor Advisory
- exchange.xforce.ibmcloud.com/vulnerabilities/82nvd
News mentions
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