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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

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
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.