CVE-2021-35942
GNU C Library (glibc) Wordexp Format String Vulnerability
Description
The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations.
INFO
Published Date :
July 22, 2021, 6:15 p.m.
Last Modified :
Nov. 7, 2023, 3:36 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-35942 has a 6 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-35942
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-2021-35942.
| URL | Resource |
|---|---|
| https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202208-24 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210827-0005/ | Third Party Advisory |
| https://sourceware.org/bugzilla/show_bug.cgi?id=28011 | Issue Tracking Third Party Advisory |
| https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=5adda61f62b77384718b4c0d8336ade8f2b4b35c | |
| https://sourceware.org/glibc/wiki/Security%20Exceptions | Vendor 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).
A basic analysis about CVE-2021-35942. SQL injection in Django.
Dockerfile Python Shell
None
Java
None
Java
Random late night exercises
Dockerfile Shell Python HCL
CKS Notes
None
Open Policy Agent
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-35942 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-35942 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]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=5adda61f62b77384718b4c0d8336ade8f2b4b35c [No types assigned] Removed Reference MITRE https://sourceware.org/git/?p=glibc.git;a=commit;h=5adda61f62b77384718b4c0d8336ade8f2b4b35c -
Modified Analysis by [email protected]
Nov. 08, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 17, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html [No Types Assigned] -
Modified Analysis by [email protected]
Sep. 28, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202208-24 No Types Assigned https://security.gentoo.org/glsa/202208-24 Third Party Advisory -
CVE Modified by [email protected]
Aug. 15, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202208-24 [No Types Assigned] -
Modified Analysis by [email protected]
Sep. 21, 2021
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20210827-0005/ No Types Assigned https://security.netapp.com/advisory/ntap-20210827-0005/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* *cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:* versions from (including) 11.0 up to (including) 11.70.1 *cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 27, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210827-0005/ [No Types Assigned] -
Reanalysis by [email protected]
Aug. 26, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* versions up to (including) 2.33 OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* versions up to (excluding) 2.32 -
Initial Analysis by [email protected]
Aug. 02, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Changed Reference Type https://sourceware.org/bugzilla/show_bug.cgi?id=28011 No Types Assigned https://sourceware.org/bugzilla/show_bug.cgi?id=28011 Issue Tracking, Third Party Advisory Changed Reference Type https://sourceware.org/git/?p=glibc.git;a=commit;h=5adda61f62b77384718b4c0d8336ade8f2b4b35c No Types Assigned https://sourceware.org/git/?p=glibc.git;a=commit;h=5adda61f62b77384718b4c0d8336ade8f2b4b35c Mailing List, Patch, Third Party Advisory Changed Reference Type https://sourceware.org/glibc/wiki/Security%20Exceptions No Types Assigned https://sourceware.org/glibc/wiki/Security%20Exceptions Vendor Advisory Added CWE NIST CWE-190 Added CPE Configuration OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* versions up to (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-2021-35942 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-2021-35942
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.60 }} 0.47%
score
0.87604
percentile