Vulnerability 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.
CVSS Score
7.2
HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Sun | Sunos | 4.1 |
References
- http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/117&type=0&Patch
- http://www.cert.org/advisories/CA-1992-15.htmlPatchThird Party AdvisoryUS Government Resource
- http://www.securityfocus.com/bid/47PatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/82
- http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/117&type=0&Patch
- http://www.cert.org/advisories/CA-1992-15.htmlPatchThird Party AdvisoryUS Government Resource
- http://www.securityfocus.com/bid/47PatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/82
FAQ
What is CVE-1999-1021?
CVE-1999-1021 is a vulnerability with a CVSS score of 7.2 (HIGH). 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.
How severe is CVE-1999-1021?
CVE-1999-1021 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-1999-1021?
Check the references section above for vendor advisories and patch information. Affected products include: Sun Sunos.