Vulnerability · Published Jan 11, 2021 · Assigned by apache
CVE-2020-17509
High 7.5
In plain English
A high-severity security flaw in Apache Traffic Server. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.8%top 21.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
ATS negative cache option is vulnerable to a cache poisoning attack. If you have this option enabled, please upgrade or disable this feature. Apache Traffic Server versions 7.0.0 to 7.1.11 and 8.0.0 to 8.1.0 are affected.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | trafficserver | 8.1.1+ds-1 | DEBIAN-CVE-2020-17509 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Apache Traffic Server | Apache Traffic Server 7.0.0 to 7.1.11, 8.0.0 to 8.1.0 |