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CVE-2021-3999 Detail

Description

A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/security/cve/CVE-2021-3999 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2024637 Issue Tracking  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html Mailing List  Third Party Advisory 
https://security-tracker.debian.org/tracker/CVE-2021-3999 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20221104-0001/ Third Party Advisory 
https://sourceware.org/bugzilla/show_bug.cgi?id=28769 Issue Tracking  Third Party Advisory 
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e
https://www.openwall.com/lists/oss-security/2022/01/24/4 Exploit  Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-193 Off-by-one Error cwe source acceptance level NIST   Red Hat, Inc.  

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-3999
NVD Published Date:
08/24/2022
NVD Last Modified:
02/12/2023
Source:
Red Hat, Inc.