CVE-2021-27290
Last modified
CVE-2021-27290 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 4.70% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ssri Project | Ssri | >= 5.2.2, < 6.0.2 |
| Ssri Project | Ssri | >= 7.0.0, < 8.0.1 |
| Oracle | Graalvm | 20.3.3 |
| Oracle | Graalvm | 21.2.0 |
| Siemens | Sinec Infrastructure Network Services | < 1.0.1.1 |
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
- https://doyensec.com/resources/Doyensec_Advisory_ssri_redos.pdfExploit, Patch, Third Party Advisory
- https://github.com/yetingli/SaveResults/blob/main/pdf/ssri-redos.pdfExploit, Third Party Advisory
- https://npmjs.comProduct
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
- https://doyensec.com/resources/Doyensec_Advisory_ssri_redos.pdfExploit, Patch, Third Party Advisory
- https://github.com/yetingli/SaveResults/blob/main/pdf/ssri-redos.pdfExploit, Third Party Advisory
- https://npmjs.comProduct
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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