CVE-2021-3998
"Glibc realpath Information Leak Vulnerability"
Description
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.
INFO
Published Date :
Aug. 24, 2022, 4:15 p.m.
Last Modified :
Feb. 12, 2023, 11:43 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-3998
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-3998.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2021-3998 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2024633 | Issue Tracking Patch Third Party Advisory |
| https://security-tracker.debian.org/tracker/CVE-2021-3998 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20221020-0003/ | Third Party Advisory |
| https://sourceware.org/bugzilla/show_bug.cgi?id=28770 | Issue Tracking Patch Third Party Advisory |
| https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=84d2d0fe20bdf94feed82b21b4d7d136db471f03 | |
| https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ee8d5e33adb284601c00c94687bc907e10aec9bb | |
| https://www.openwall.com/lists/oss-security/2022/01/24/4 | Mailing List Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3998 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3998 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value Removed Reference https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=84d2d0fe20bdf94feed82b21b4d7d136db471f03 [Mailing List, Patch, Third Party Advisory] Removed Reference https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ee8d5e33adb284601c00c94687bc907e10aec9bb [Mailing List, Patch, Third Party Advisory] Added Reference https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ee8d5e33adb284601c00c94687bc907e10aec9bb [No Types Assigned] Added Reference https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=84d2d0fe20bdf94feed82b21b4d7d136db471f03 [No Types Assigned] -
Modified Analysis by [email protected]
Nov. 08, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20221020-0003/ No Types Assigned https://security.netapp.com/advisory/ntap-20221020-0003/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 20, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20221020-0003/ [No Types Assigned] -
Reanalysis by [email protected]
Sep. 02, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* versions from (including) 2.33 OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* versions from (including) 2.33 up to (excluding) 2.35 -
Initial Analysis by [email protected]
Aug. 29, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://access.redhat.com/security/cve/CVE-2021-3998 No Types Assigned https://access.redhat.com/security/cve/CVE-2021-3998 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2024633 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2024633 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://security-tracker.debian.org/tracker/CVE-2021-3998 No Types Assigned https://security-tracker.debian.org/tracker/CVE-2021-3998 Third Party Advisory Changed Reference Type https://sourceware.org/bugzilla/show_bug.cgi?id=28770 No Types Assigned https://sourceware.org/bugzilla/show_bug.cgi?id=28770 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=84d2d0fe20bdf94feed82b21b4d7d136db471f03 No Types Assigned https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=84d2d0fe20bdf94feed82b21b4d7d136db471f03 Mailing List, Patch, Third Party Advisory Changed Reference Type https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ee8d5e33adb284601c00c94687bc907e10aec9bb No Types Assigned https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ee8d5e33adb284601c00c94687bc907e10aec9bb Mailing List, Patch, Third Party Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2022/01/24/4 No Types Assigned https://www.openwall.com/lists/oss-security/2022/01/24/4 Mailing List, Patch, Third Party Advisory Added CWE NIST CWE-252 Added CPE Configuration OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* versions from (including) 2.33
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3998 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-3998
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.18 }} -0.00%
score
0.54762
percentile