CVE-2021-46828
Apache libtirpc File Descriptor Exhaustion Remote DoS
Description
In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.
INFO
Published Date :
July 20, 2022, 6:15 a.m.
Last Modified :
Nov. 7, 2023, 3:40 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-46828 has a 3 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-2021-46828
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-2021-46828.
| URL | Resource |
|---|---|
| http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed | |
| https://lists.debian.org/debian-lts-announce/2022/08/msg00004.html | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202210-33 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20221007-0004/ | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5200 | 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).
None
Dockerfile Roff Java
None
Shell Dockerfile
Base container images for DAWE DMZ Migration Project
Dockerfile Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-46828 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-46828 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 http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed [No types assigned] Removed Reference MITRE http://git.linux-nfs.org/?p=steved/libtirpc.git;a=commit;h=86529758570cef4c73fb9b9c4104fdc510f701ed -
CWE Remap by [email protected]
Aug. 08, 2023
Action Type Old Value New Value Changed CWE CWE-770 CWE-755 CWE-835 -
Modified Analysis by [email protected]
Dec. 02, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202210-33 No Types Assigned https://security.gentoo.org/glsa/202210-33 Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20221007-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20221007-0004/ Third Party Advisory -
CVE Modified by [email protected]
Oct. 31, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202210-33 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 07, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20221007-0004/ [No Types Assigned] -
Modified Analysis by [email protected]
Sep. 20, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/08/msg00004.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/08/msg00004.html Mailing List, Third Party Advisory Changed Reference Type https://www.debian.org/security/2022/dsa-5200 No Types Assigned https://www.debian.org/security/2022/dsa-5200 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:libtirpc_project:libtirpc:*:*:*:*:*:*:*:* versions up to (excluding) 1.3.3 *cpe:2.3:a:libtirpc_project:libtirpc:1.3.3:-:*:*:*:*:*:* OR *cpe:2.3:a:libtirpc_project:libtirpc:*:*:*:*:*:*:*:* versions up to (excluding) 1.3.3 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 12, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/08/msg00004.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 07, 2022
Action Type Old Value New Value Added Reference https://www.debian.org/security/2022/dsa-5200 [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 01, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://git.linux-nfs.org/?p=steved/libtirpc.git;a=commit;h=86529758570cef4c73fb9b9c4104fdc510f701ed No Types Assigned http://git.linux-nfs.org/?p=steved/libtirpc.git;a=commit;h=86529758570cef4c73fb9b9c4104fdc510f701ed Patch, Third Party Advisory Added CWE NIST CWE-770 Added CPE Configuration OR *cpe:2.3:a:libtirpc_project:libtirpc:*:*:*:*:*:*:*:* versions up to (excluding) 1.3.3 *cpe:2.3:a:libtirpc_project:libtirpc:1.3.3:-:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-46828 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-2021-46828
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.03 }} 0.52%
score
0.84175
percentile