Strix
26.1K

CVE-2023-5981

MEDIUMCVSS 5.9/10EPSS 1.26%

Last modified

CVE-2023-5981 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.. EPSS estimates a 1.26% chance of exploitation in the next 30 days.

Description

A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.

Metrics

CVSS 3.1
5.9/10

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

EPSS Probability
1.26%

65.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DebianDebian Linux10.0
GnuGnutls< 3.8.2
RedhatLinux8.0
RedhatLinux9.0
FedoraprojectFedora37
FedoraprojectFedora38

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2023-5981?
A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.
How severe is CVE-2023-5981?
CVE-2023-5981 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 1.26% probability of exploitation in the next 30 days.
How do I fix CVE-2023-5981?
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-2023-5981?

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

Scan your code now

Source: NVD / NIST