Strix
26.1K

CVE-2022-20927

MEDIUMCVSS 6.5/10EPSS 0.50%

Last modified

CVE-2022-20927 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A vulnerability in the SSL/TLS client of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management when a device initiates SSL/TLS connections. An attacker could exploit this vulnerability by ensuring that the device will connect to an SSL/TLS server that is using specific encryption parameters. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

A vulnerability in the SSL/TLS client of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management when a device initiates SSL/TLS connections. An attacker could exploit this vulnerability by ensuring that the device will connect to an SSL/TLS server that is using specific encryption parameters. A successful exploit could allow the attacker to cause the affected device to unexpectedly reload, resulting in a DoS condition.

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.50%

38.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoAdaptive Security Appliance Software9.13.1
CiscoAdaptive Security Appliance Software9.13.1.2
CiscoAdaptive Security Appliance Software9.13.1.7
CiscoAdaptive Security Appliance Software9.13.1.10
CiscoAdaptive Security Appliance Software9.13.1.12
CiscoAdaptive Security Appliance Software9.13.1.13
CiscoAdaptive Security Appliance Software9.13.1.16
CiscoAdaptive Security Appliance Software9.13.1.19
CiscoAdaptive Security Appliance Software9.13.1.21
CiscoAdaptive Security Appliance Software9.14.1
CiscoAdaptive Security Appliance Software9.14.1.10
CiscoAdaptive Security Appliance Software9.14.1.15
CiscoAdaptive Security Appliance Software9.14.1.19
CiscoAdaptive Security Appliance Software9.14.1.30
CiscoAdaptive Security Appliance Software9.14.2
CiscoAdaptive Security Appliance Software9.14.2.4
CiscoAdaptive Security Appliance Software9.14.2.8
CiscoAdaptive Security Appliance Software9.14.2.13
CiscoAdaptive Security Appliance Software9.14.2.15
CiscoAdaptive Security Appliance Software9.14.3
CiscoAdaptive Security Appliance Software9.14.3.1
CiscoAdaptive Security Appliance Software9.14.3.9
CiscoAdaptive Security Appliance Software9.14.3.11
CiscoAdaptive Security Appliance Software9.14.3.13
CiscoAdaptive Security Appliance Software9.14.3.15
CiscoAdaptive Security Appliance Software9.14.3.18
CiscoAdaptive Security Appliance Software9.15.1
CiscoAdaptive Security Appliance Software9.15.1.1
CiscoAdaptive Security Appliance Software9.15.1.7
CiscoAdaptive Security Appliance Software9.15.1.10
CiscoAdaptive Security Appliance Software9.15.1.15
CiscoAdaptive Security Appliance Software9.15.1.16
CiscoAdaptive Security Appliance Software9.15.1.17
CiscoAdaptive Security Appliance Software9.15.1.21
CiscoFirepower Threat Defense>= 6.5.0, <= 6.5.0.5
CiscoFirepower Threat Defense>= 6.7.0, <= 6.7.0.3
CiscoFirepower Threat Defense6.6.0
CiscoFirepower Threat Defense6.6.0.1
CiscoFirepower Threat Defense6.6.1
CiscoFirepower Threat Defense6.6.3
CiscoFirepower Threat Defense6.6.4
CiscoFirepower Threat Defense6.6.5
CiscoFirepower Threat Defense6.6.5.1
CiscoFirepower Services Software For AsaAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-20927?
A vulnerability in the SSL/TLS client of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management when a device initiates SSL/TLS connections. An attacker could exploit this vulnerability by ensuring that the device will connect to an SSL/TLS server that is using specific encryption parameters. A successful exploit could allow the attacker to cause the affected device to unexpectedly reload, resulting in a DoS condition.
How severe is CVE-2022-20927?
CVE-2022-20927 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.
How do I fix CVE-2022-20927?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-20927?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST