SUSE update for squid



Published: 2022-07-16
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-33620
CVE-2021-46784
CWE-ID CWE-20
CWE-617
Exploitation vector Network
Public exploit N/A
Vulnerable software
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SUSE Linux Enterprise Server
Operating systems & Components / Operating system

squid-debugsource
Operating systems & Components / Operating system package or component

squid-debuginfo
Operating systems & Components / Operating system package or component

squid
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU65362

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33620

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote server to perform a denial of service (DoS) attack.

The vulnerability can be triggered by a header that can be expected to exist in HTTP traffic without any malicious intent by the server. A remote server can trigger the vulnerability and perform a denial of service (DoS) attack.

Mitigation

Update the affected package squid to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

squid-debugsource: before 4.17-4.24.1

squid-debuginfo: before 4.17-4.24.1

squid: before 4.17-4.24.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222367-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Reachable Assertion

EUVDB-ID: #VU64484

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-46784

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion when processing Gopher server responses. A remote attacker can send a specially crafted response to the proxy server and perform a denial of service (DoS) attack.

Mitigation

Update the affected package squid to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

squid-debugsource: before 4.17-4.24.1

squid-debuginfo: before 4.17-4.24.1

squid: before 4.17-4.24.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222367-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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