CVE-2021-27290

high

Description

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.

References

https://doyensec.com/resources/Doyensec_Advisory_ssri_redos.pdf

https://npmjs.com

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

Details

Source: MITRE

Published: 2021-03-12

Updated: 2022-05-13

Risk Information

CVSS v2

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

CVSS v3

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