CVE-2021-27290

EPSS 4.7%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 4.7%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

12 Mar 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

n/a · n/a

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References

https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://doyensec.com/resources/Doyensec_Advisory_ssri_redos.pdf https://github.com/yetingli/SaveResults/blob/main/pdf/ssri-redos.pdf https://npmjs.com https://www.oracle.com/security-alerts/cpuoct2021.html