Vulnerability in Apache Traffic Server
CVE-2019-17559
There is a vulnerability in Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.8, and 8.0.0 to 8.0.5 with a smuggling attack and scheme parsing. Upgrade to versions 7.1.9 and 8.0.6 or later versions.
Vulnerability class: HTTP Request Smuggling
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.032 (87.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000
Affected products
- Apache Traffic Server
- Debian Linux — versions 10.0
- Apache Traffic Server — versions Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.8, and 8.0.0 to 8.0.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/r99d18d0bc4daa05e7d0e5a63e0e22701a421b2ef5a8f4f769… (Mailing List, Vendor Advisory)
- www.debian.org/security/2020/dsa-4672 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-17559?
- CVE-2019-17559 is a critical-severity vulnerability in Apache Traffic Server, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 9.8/10. Published 2020-03-23.
- How severe is CVE-2019-17559?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-17559 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.