Improper input validation in Apache Traffic Server
CVE-2021-37147
Improper input validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.025 (84.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Apache Traffic Server
- Apache Software Foundation Traffic Server — versions 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0
- Debian Linux — versions 10.0, 11.0
Weakness classification (CWE)
References
- lists.apache.org/thread/k01797hyncx53659wr3o72s5cvkc3164 (Patch, Mailing List, Vendor Advisory)
- www.debian.org/security/2022/dsa-5153 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-37147?
- CVE-2021-37147 is a high-severity vulnerability in Apache Traffic Server, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2021-11-03.
- How severe is CVE-2021-37147?
- High severity. CVSS v3 base score is 7.5 out of 10.