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CVE-2021-3998

Date: August 23, 2022

A flaw was found in glibc. The realpath() function can mistakenly return an unexpected value, potentially leading to information leakage and disclosure of sensitive data.

Language: C

Severity Score

7.5

Related Resources (14)

Url: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ee8d5e33adb284601c00c94687bc907e10aec9bb

Url: https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=84d2d0fe20bdf94feed82b21b4d7d136db471f03

Url: https://bugzilla.redhat.com/show_bug.cgi?id=2024633

Url: https://access.redhat.com/security/cve/CVE-2021-3998

Url: https://www.openwall.com/lists/oss-security/2022/01/24/4

Url: https://security.netapp.com/advisory/ntap-20221020-0003/

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-3998

Url: https://security-tracker.debian.org/tracker/CVE-2021-3998

Url: https://github.com/bminor/glibc/commit/ee8d5e33adb284601c00c94687bc907e10aec9bb

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3998

Url: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=84d2d0fe20bdf94feed82b21b4d7d136db471f03

Url: https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ee8d5e33adb284601c00c94687bc907e10aec9bb

Url: https://sourceware.org/bugzilla/show_bug.cgi?id=28770

Url: https://www.mend.io/vulnerability-database/CVE-2021-3998

Severity Score

7.5

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

Unchecked Return Value

CWE-252

CVSS v3.1

Base Score:	7.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	NONE
Availability (A):	NONE

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