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CVE-2020-17509

Date: January 11, 2021

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.

Language: C++

Severity Score

Related Resources (8)

https://people.canonical.com/~ubuntu-security/cve/CVE-2020-17509
https://nvd.nist.gov/vuln/detail/CVE-2020-17509
https://security-tracker.debian.org/tracker/CVE-2020-17509
https://github.com/apache/trafficserver/commit/8eb68266167d8f8b3fa3a00ca9f6b7889e8ec101#diff-ee4f5dc00b390358f90ea4edbaa09f0130c95c646920fa25c9c0af9f72407533R1
https://github.com/apache/trafficserver/pull/7359
https://lists.apache.org/thread.html/raa9f0589c26c4d146646425e51e2a33e1457492df9f7ea2019daa6d3%40%3Cdev.trafficserver.apache.org%3E
https://lists.apache.org/thread.html/raa9f0589c26c4d146646425e51e2a33e1457492df9f7ea2019daa6d3%40%3Cannounce.trafficserver.apache.org%3E
https://www.mend.io/vulnerability-database/CVE-2020-17509

Severity Score

Weakness Type (CWE)

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

CWE-444

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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