ssri 5.2.2-8.0.0, fixed in 8.0.1, processes SRIs using a regular expression which is vulnerable to a denial of service. Malicious SRIs could take an extremely long time to process, leading to denial of service. This issue only affects consumers using the strict option.
https://doyensec.com/resources/Doyensec_Advisory_ssri_redos.pdf
https://github.com/yetingli/SaveResults/blob/main/pdf/ssri-redos.pdf
https://www.oracle.com/security-alerts/cpuoct2021.html
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
Source: MITRE
Published: 2021-03-12
Updated: 2022-05-13
Type: NVD-CWE-Other
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH