7.5

CVE-2021-41817: debian debian_linux

Modified
AliasesALPINE-CVE-2021-41817UBUNTU-CVE-2021-41817DEBIAN-CVE-2021-41817
Published 01-01-2022Last modified 04-08-2024

Vulnerability summary

CVE-2021-41817 is a high (CVSS 7.5) vulnerability in debian debian_linux. EPSS estimates a 3.46% chance of exploitation in the next 30 days, higher than 89% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
3.46%
0%100%
Low · +0.24 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 24 · Related 10
DLA-2853-1DSA-5066-1DSA-5067-1MGASA-2021-0579OPENSUSE-SU-2024:11657-1OPENSUSE-SU-2024:11658-1

Timeline

  1. 01-01-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Date.parse in the date gem through 3.2.0 for Ruby allows ReDoS (regular expression Denial of Service) via a long string. The fixed versions are 3.2.1, 3.1.2, 3.0.2, and 2.0.1.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

3.46%

Chance of exploitation in the next 30 days

Percentile

89%

Versus all other CVEs

30-day change

Increase +0.24 pp

From 3.22% on 05-10-2026

05-10-202604-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (ruby-lang.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu4 products
  • ruby2.3< 2.3.1-2~ubuntu16.04.16+esm2
  • ruby2.5< 2.5.1-1ubuntu1.11
  • ruby2.7< 2.7.0-5ubuntu1.6
  • ruby3.0< 3.0.2-7ubuntu2
Debian2 products
Opensuse2 products
Redhat2 products
Ruby-lang2 products
  • date< 2.0.1 | ≥ 3.0.0, < 3.0.2 | ≥ 3.1.0, < 3.1.2 | 3.2.0
  • ruby≥ 2.6.0, < 2.6.9 | ≥ 2.7.0, < 2.7.5 | ≥ 3.0.0, < 3.0.3
Alpine1 product
  • ruby≥ 2.6.0, < 2.7.5-r0 | ≥ 2.6.0, < 3.0.3-r0
Fedoraproject1 product
RubyGems1 product
  • date≥ 3.2.0, < 3.2.1 | ≥ 3.1.0, < 3.1.2 | ≥ 3.0.0, < 3.0.2 | < 2.0.1
Suse1 product

9 vendors · 16 products

References

21 links
Show all 21 references