VulnerabilityModified
CVE-2021-28682
There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.
HIGH 7.5EPSS 2.04%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.04%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.04% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- envoyproxy/envoy
- Source
- cve@mitre.org
References
- https://blog.envoyproxy.ioVendor Advisory
- https://github.com/envoyproxy/envoy/blob/15e3b9dbcc9aaa9d391fa8033904aad1ea1ae70d/api/envoy/api/v2/cluster.proto#L36Exploit, Third Party Advisory
- https://github.com/envoyproxy/envoy/releasesThird Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-r22g-5f3x-xjggThird Party Advisory
- https://blog.envoyproxy.ioVendor Advisory
- https://github.com/envoyproxy/envoy/blob/15e3b9dbcc9aaa9d391fa8033904aad1ea1ae70d/api/envoy/api/v2/cluster.proto#L36Exploit, Third Party Advisory
- https://github.com/envoyproxy/envoy/releasesThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.