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.

7.2

CVSS

Severity: High

CVSS 2.0 •

EPSS 0.08%

Vendor Advisory sun.com Vendor Advisory securityfocus.com

Affected: n/a n/a

References

Link	Tags
http://www.cert.org/advisories/CA-1992-15.html	us government resource third party advisory patch
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/117&type=0&nav=sec.sba	patch vendor advisory
http://www.securityfocus.com/bid/47	vdb entry patch vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/82	vdb entry

Frequently Asked Questions

What is the severity of CVE-1999-1021?: CVE-1999-1021 has been scored as a high severity vulnerability.
How to fix CVE-1999-1021?: To fix CVE-1999-1021, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-1999-1021 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-1999-1021 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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