7.5

CVE-2023-22796: activesupport_project activesupport Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighModified
AliasesSUSE-SU-2023:0275-1SUSE-SU-2023:0612-1UBUNTU-CVE-2023-22796
Published 09-02-2023Last modified 27-11-2024
Open JSON

Vulnerability summary

CVE-2023-22796 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in activesupport_project activesupport. EPSS estimates a 1.71% chance of exploitation in the next 30 days, higher than 77% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.71%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 2
DSA-5372-1OPENSUSE-SU-2024:14071-1OPENSUSE-SU-2025:15114-1RHSA-2023:6818

Timeline

  1. 09-02-2023
    PublishedVulnerability first disclosed.
  2. 27-11-2024
    Last modifiedVulnerability information updated.

Description

A regular expression based DoS vulnerability in Active Support <6.1.7.1 and <7.0.4.1. A specially crafted string passed to the underscore method can cause the regular expression engine to enter a state of catastrophic backtracking. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

1.71%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

0.00 pp

From 1.71% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.71%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Suse6 products
  • rubygem-activesupport-4_2&distro=SUSE OpenStack Cloud Crowbar 8< 4.2.9-7.15.1
  • rubygem-activesupport-4_2&distro=SUSE OpenStack Cloud Crowbar 9< 4.2.9-7.15.1
  • rubygem-activesupport-5_1&distro=SUSE Linux Enterprise High Availability Extension 15 SP1< 5.1.4-150000.3.12.1
  • rubygem-activesupport-5_1&distro=SUSE Linux Enterprise High Availability Extension 15 SP2< 5.1.4-150000.3.12.1
  • rubygem-activesupport-5_1&distro=SUSE Linux Enterprise High Availability Extension 15 SP3< 5.1.4-150000.3.12.1
Opensuse2 products
  • rubygem-activesupport-5_1&distro=openSUSE Leap 15.4< 5.1.4-150000.3.12.1
  • rubygem-activesupport-7.0&distro=openSUSE Tumbleweed< 7.0.4.1-1.1
Activesupport_project1 product
Debian1 product
  • rails< 2:6.1.7.3+dfsg-1
RubyGems1 product
  • activesupport< 6.1.7.1 | ≥ 7.0.0, < 7.0.4.1
Ubuntu1 product
  • railsAll versions (No fix recorded)

6 vendors · 12 products

References

19 links
Show all 19 references