5.5
MEDIUM
CVE-2022-3821
Systemd Time Denial of Service Buffer Overrun
Description

An off-by-one Error issue was discovered in Systemd in format_timespan() function of time-util.c. An attacker could supply specific values for time and accuracy that leads to buffer overrun in format_timespan(), leading to a Denial of Service.

INFO

Published Date :

Nov. 8, 2022, 10:15 p.m.

Last Modified :

Nov. 21, 2024, 7:20 a.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2022-3821 has a 2 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-2022-3821 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.

ID Vendor Product Action
1 Redhat enterprise_linux
1 Fedoraproject fedora
1 Systemd_project systemd

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

Updated: 2 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Oct. 7, 2024, 8:52 a.m. This repo has been linked 127 different CVEs too.

None

TypeScript

Updated: 2 years ago
0 stars 0 fork 0 watcher
Born at : Dec. 6, 2022, 12:43 p.m. This repo has been linked 43 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-3821 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-3821 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2139327
    Added Reference https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4e
    Added Reference https://github.com/systemd/systemd/issues/23928
    Added Reference https://github.com/systemd/systemd/pull/23933
    Added Reference https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/
    Added Reference https://security.gentoo.org/glsa/202305-15
  • 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 Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/ [No types assigned]
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/
  • CVE Modified by [email protected]

    Jun. 29, 2023

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html [No Types Assigned]
  • CVE Modified by [email protected]

    May. 03, 2023

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202305-15 [No Types Assigned]
  • Modified Analysis by [email protected]

    Dec. 02, 2022

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/ Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 20, 2022

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Nov. 09, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2139327 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2139327 Issue Tracking, Third Party Advisory
    Changed Reference Type https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4e No Types Assigned https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4e Patch, Third Party Advisory
    Changed Reference Type https://github.com/systemd/systemd/issues/23928 No Types Assigned https://github.com/systemd/systemd/issues/23928 Exploit, Issue Tracking, Third Party Advisory
    Changed Reference Type https://github.com/systemd/systemd/pull/23933 No Types Assigned https://github.com/systemd/systemd/pull/23933 Patch, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* versions up to (including) 251
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-3821 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-2022-3821 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.08 }} 0.01%

score

0.32752

percentile

CVSS31 - Vulnerability Scoring System
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