CVE-2020-9494
First published: Wed Jun 24 2020(Updated: )
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.
Credit: security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache Traffic Server | >=6.0.0<=6.2.3 | |
| Apache Traffic Server | >=7.0.0<=7.1.10 | |
| Apache Traffic Server | >=8.0.0<=8.0.7 | |
| Debian Debian Linux | =10.0 | |
| debian/trafficserver | 8.0.2+ds-1+deb10u6 8.1.7-0+deb10u2 8.1.7+ds-1~deb11u1 9.2.0+ds-2+deb12u1 9.2.2+ds-1 | |
| debian/trafficserver | <=8.0.2+ds-1<=8.0.0-1<=8.0.2+ds-1+deb10u2<=7.0.0-1<=8.0.7+ds-1<=6.0.0-1 | 8.0.8+ds-1 8.0.2+ds-1+deb10u3 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2021/03/01/2
- https://lists.apache.org/thread.html/rf7f86917f42fdaf904d99560cba0c016e03baea6244c47efeb60ecbe%40%3Cdev.trafficserver.apache.org%3E
- https://www.debian.org/security/2020/dsa-4710
- https://github.com/apache/trafficserver/pull/6922
- https://security-tracker.debian.org/tracker/CVE-2020-9494
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-9494
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=963629
Frequently Asked Questions
What is CVE-2020-9494?
CVE-2020-9494 is a vulnerability in Apache Traffic Server that allows the server to allocate a large amount of memory and spin the thread when certain types of HTTP/2 HEADERS frames are received.
How severe is CVE-2020-9494?
CVE-2020-9494 has a severity level of 7.5 (high).
Which software versions are affected by CVE-2020-9494?
Apache Traffic Server versions 6.0.0 to 6.2.3, 7.0.0 to 7.1.10, and 8.0.0 to 8.0.7 are affected by CVE-2020-9494.
How can I fix CVE-2020-9494?
To fix CVE-2020-9494, update your Apache Traffic Server to version 8.0.8 or higher.
Where can I find more information about CVE-2020-9494?
You can find more information about CVE-2020-9494 on the Debian security tracker and MITRE CVE website.
- collector/nvd-index
- collector/security-tracker-debian
- collector/debian-bugs
- alias/CVE-2020-9494
- vendor/apache
- canonical/apache traffic server
- version/apache traffic server/6.0.0
- version/apache traffic server/6.2.3
- version/apache traffic server/7.0.0
- version/apache traffic server/7.1.10
- version/apache traffic server/8.0.0
- version/apache traffic server/8.0.7
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- package-manager/debian