VulnerabilityModified
CVE-2021-32567
Improper Input Validation vulnerability in HTTP/2 of Apache Traffic Server allows an attacker to DOS the server.
HIGH 7.5EPSS 2.45%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Improper Input Validation vulnerability in HTTP/2 of Apache Traffic Server allows an attacker to DOS the server. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.
- 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
- 2.45% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- apache/traffic server · debian/debian linux
- Source
- security@apache.org
References
- https://lists.apache.org/thread.html/ra1a41ff92a70d25bf576d7da2590575e8ff430393a3f4a0c34de4277%40%3Cusers.trafficserver.apache.org%3EMailing List, Vendor Advisory
- https://www.debian.org/security/2021/dsa-4957Third Party Advisory
- https://lists.apache.org/thread.html/ra1a41ff92a70d25bf576d7da2590575e8ff430393a3f4a0c34de4277%40%3Cusers.trafficserver.apache.org%3EMailing List, Vendor Advisory
- https://www.debian.org/security/2021/dsa-4957Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.