CVE-2021-37149: Request Smuggling - multiple attacks
First published: Wed Nov 03 2021(Updated: )
Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0.
Credit: security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 | |
| Apache Traffic Server | >=8.0.0<=8.1.2 | |
| Apache Traffic Server | >=9.0.0<=9.1.0 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 |
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Reference Links
- https://www.openwall.com/lists/oss-security/2021/11/02/11
- https://github.com/apache/trafficserver/pull/8458/
- https://github.com/apache/trafficserver/commit/2addc8ca71449ceac0d5b80172460ee09c938f5e
- https://github.com/apache/trafficserver/commit/83c89f3d217d473ecb000b68c910c0f183c3a355
- https://security-tracker.debian.org/tracker/CVE-2021-37149
- https://lists.apache.org/thread/k01797hyncx53659wr3o72s5cvkc3164
- https://www.debian.org/security/2022/dsa-5153
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2021-37149.
What is the severity of CVE-2021-37149?
The severity of CVE-2021-37149 is high, with a severity value of 7.5.
Which software versions are affected by CVE-2021-37149?
CVE-2021-37149 affects Apache Traffic Server versions 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0.
How can an attacker exploit CVE-2021-37149?
An attacker can exploit CVE-2021-37149 by smuggling requests through improper input validation in header parsing of Apache Traffic Server.
Is there a fix available for CVE-2021-37149?
Yes, there are fixes available for CVE-2021-37149. Please refer to the references for more information.
- collector/security-tracker-debian
- collector/nvd-index
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/weakness
- agent/severity
- agent/last-modified-date
- agent/title
- agent/references
- agent/author
- agent/first-publish-date
- agent/tags
- agent/description
- agent/event
- package-manager/debian
- vendor/apache
- canonical/apache traffic server
- version/apache traffic server/8.0.0
- version/apache traffic server/8.1.2
- version/apache traffic server/9.0.0
- version/apache traffic server/9.1.0
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- version/debian debian linux/11.0