Resource exhaustion in Apache Traffic Server
CVE-2020-9494
Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.10, and 8.0.0 to 8.0.7 is vulnerable to certain types of HTTP/2 HEADERS frames that can cause the server to allocate a large amount of memory and spin the thread.
EPSS: 0.039 (89.2th percentile) — read the EPSS interpretation.
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:N/A:H.
Affected products
- Apache Traffic_server
- Apache Software Foundation Traffic Server — versions 6.0.0 to 6.2.3, 7.0.0 to 7.1.10, 8.0.0 to 8.0.7
- Debian Debian_linux — versions 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_CONFIRM, Mailing List, Vendor Advisory)
- security@apache.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- security@apache.org (mailing-list, x_refsource_MLIST, Not Applicable)
Frequently asked questions
- What is CVE-2020-9494?
- CVE-2020-9494 is a high-severity vulnerability in Apache Traffic Server, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2020-06-24.
- How severe is CVE-2020-9494?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-9494 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.