Summary
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)
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 18.04 LTS 18.04:LTS | squid3 | 3.5.27-1ubuntu1.11 |
| Ubuntu · 20.04 LTS 20.04:LTS | squid | 4.10-1ubuntu1.4 |
Vulnerabilities 7
-
Medium 6.5CVE-2021-33620 EPSS 80%
Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting availability to al…
-
Unscored —
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial o…
-
Unscored —
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Deni…
-
Unscored —CVE-2021-28662 EPSS 72%
An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain response head…
-
Unscored —
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is vulnerable to …
-
Unscored —
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a remote server t…
-
Unscored —
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to …
References
-
report
https://ubuntu.com/security/CVE-2021-28651
-
report
https://ubuntu.com/security/CVE-2021-28652
-
report
https://ubuntu.com/security/CVE-2021-28662
-
report
https://ubuntu.com/security/CVE-2021-31806
-
report
https://ubuntu.com/security/CVE-2021-31807
-
report
https://ubuntu.com/security/CVE-2021-31808
-
report
https://ubuntu.com/security/CVE-2021-33620