PT-2021-21531 · Apache · Apache Traffic Server

Asta Olofsson + 1 · Published 2021-11-03 · Updated 2022-10-14 · CVE-2021-37148

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Apache Traffic Server versions 8.0.0 through 8.1.2 Apache Traffic Server versions 9.0.0 through 9.0.1

Description The issue is related to improper input validation in the header parsing of Apache Traffic Server, allowing an attacker to smuggle requests.

Recommendations For Apache Traffic Server versions 8.0.0 through 8.1.2, update to a version outside of this range to resolve the issue. For Apache Traffic Server versions 9.0.0 through 9.0.1, update to a version outside of this range to resolve the issue.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2021-37148

DSA-5153-1

Affected Products

Apache Traffic Server

References · 15

• https://lists.apache.org/thread/k01797hyncx53659wr3o72s5cvkc3164 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5153-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-37148 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-37148 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-37148 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-37148 · Security Note
• https://osv.dev/vulnerability/CVE-2021-37148 · Vendor Advisory
• https://debian.org/security/2022/dsa-5153 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37148 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-37148 · Vendor Advisory
• https://github.com/apache/trafficserver/commit/6e5070118a20772a30c3fccee2cf1c44f0a21fc0 · Note
• https://github.com/apache/trafficserver/commit/e2c9ac217f24dc3e91ff2c9f52b52093e8fb32d5 · Note
• https://openwall.com/lists/oss-security/2021/11/02/11 · Note
• https://t.me/cibsecurity/31743 · Telegram Post
• https://github.com/apache/trafficserver/pull/8457 · Note