- Vulnerability/
- USN-4981-1
USN-4981-1: Squid vulnerabilities
First published: Thu Jun 03 2021(Updated: )
Joshua Rogers discovered that Squid incorrectly handled requests with the urn: scheme. A remote attacker could possibly use this issue to cause Squid to consume resources, leading to a denial of service. (CVE-2021-28651) Joshua Rogers discovered that Squid incorrectly handled requests to the Cache Manager API. A remote attacker with access privileges could possibly use this issue to cause Squid to consume resources, leading to a denial of service. This issue was only addressed in Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-28652) Joshua Rogers discovered that Squid incorrectly handled certain response headers. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. This issue was only affected Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-28662) Joshua Rogers discovered that Squid incorrectly handled range request processing. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2021-31806, CVE-2021-31807, CVE-2021-31808) Joshua Rogers discovered that Squid incorrectly handled certain HTTP responses. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2021-33620)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/squid | <4.13-1ubuntu4.1 | 4.13-1ubuntu4.1 |
| Ubuntu Ubuntu | =21.04 | |
| All of | ||
| ubuntu/squid | <4.13-1ubuntu2.2 | 4.13-1ubuntu2.2 |
| Ubuntu Ubuntu | =20.10 | |
| All of | ||
| ubuntu/squid | <4.10-1ubuntu1.4 | 4.10-1ubuntu1.4 |
| Ubuntu Ubuntu | =20.04 | |
| All of | ||
| ubuntu/squid | <3.5.27-1ubuntu1.11 | 3.5.27-1ubuntu1.11 |
| Ubuntu Ubuntu | =18.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2021-28651
- https://ubuntu.com/security/CVE-2021-28652
- https://ubuntu.com/security/CVE-2021-31806
- https://ubuntu.com/security/CVE-2021-28662
- https://ubuntu.com/security/CVE-2021-33620
- https://ubuntu.com/security/CVE-2021-31808
- https://ubuntu.com/security/CVE-2021-31807
- https://ubuntu.com/security/notices/USN-6857-1
- https://launchpad.net/ubuntu/+source/squid/4.13-1ubuntu4.1
- https://launchpad.net/ubuntu/+source/squid/4.13-1ubuntu2.2
- https://launchpad.net/ubuntu/+source/squid/4.10-1ubuntu1.4
- https://launchpad.net/ubuntu/+source/squid3/3.5.27-1ubuntu1.11
- https://ubuntu.com/security/notices/USN-4981-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
- agent/severity
- collector/usn
- source/Ubuntu
- anchor-related/USN-6857-1
- agent/software-canonical-lookup
- agent/title
- agent/last-modified-date
- agent/references
- agent/type
- agent/first-publish-date
- agent/description
- agent/softwarecombine
- agent/event
- agent/tags
- agent/trending
- package-manager/ubuntu
- vendor/ubuntu
- canonical/ubuntu ubuntu
- version/ubuntu ubuntu/21.04
- version/ubuntu ubuntu/20.10
- version/ubuntu ubuntu/20.04
- version/ubuntu ubuntu/18.04