7.5

CVE-2022-40617: canonical ubuntu_linux Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2022-40617SUSE-SU-2022:4159-1SUSE-SU-2022:4185-1
Published 31-10-2022Last modified 06-05-2025
Open JSON

Vulnerability summary

CVE-2022-40617 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in canonical ubuntu_linux. EPSS estimates a 1.75% chance of exploitation in the next 30 days, higher than 77.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
1.75%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 31-10-2022
    PublishedVulnerability first disclosed.
  2. 06-05-2025
    Last modifiedVulnerability information updated.

Description

strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

1.75%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

+0.01 pp

From 1.74% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.75%

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

Suse8 products
  • strongswan&distro=SUSE Linux Enterprise Module for Basesystem 15 SP3< 5.8.2-150200.11.30.1
  • strongswan&distro=SUSE Linux Enterprise Module for Basesystem 15 SP4< 5.8.2-150400.19.3.3
  • strongswan&distro=SUSE Linux Enterprise Module for Package Hub 15 SP3< 5.8.2-150200.11.30.1
  • strongswan&distro=SUSE Linux Enterprise Module for Package Hub 15 SP4< 5.8.2-150400.19.3.3
  • strongswan&distro=SUSE Linux Enterprise Server 12 SP5< 5.1.3-26.23.1
Debian2 products
  • strongswan< 5.9.1-1+deb11u3 | < 5.7.2-1+deb10u3 | < 5.9.8-1
  • debian_linuxEOL10.0 | 11.0
Opensuse2 products
  • strongswan&distro=openSUSE Leap 15.3< 5.8.2-150200.11.30.1
  • strongswan&distro=openSUSE Leap 15.4< 5.8.2-150400.19.3.3
Alpine1 product
  • strongswan< 5.9.1-r2 | < 5.9.1-r3 | < 5.9.1-r4 | < 5.9.5-r2 | < 5.9.8-r0
Canonical1 product
Fedoraproject1 product
Stormshield1 product
Strongswan1 product
Ubuntu1 product
  • strongswan< 5.3.5-1ubuntu3.fips.3.8.6 | All versions (No fix recorded) | < 5.6.2-1ubuntu2.fips.2.9 | < 5.8.2-1ubuntu3.fips.3.5 | < 5.6.2-1ubuntu2.9 | < 5.8.2-1ubuntu3.5 | < 5.9.5-2ubuntu2.1 | < 5.1.2-0ubuntu2.11+esm3 | < 5.3.5-1ubuntu3.8+esm3

9 vendors · 18 products

References

14 links
Show all 14 references