SUSE update for squid



Published: 2022-07-14
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2020-25097
CVE-2021-28651
CVE-2021-46784
CWE-ID CWE-444
CWE-20
CWE-617
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Operating systems & Components / Operating system

SUSE Linux Enterprise Server for SAP
Operating systems & Components / Operating system

SUSE Linux Enterprise Server
Operating systems & Components / Operating system

SUSE OpenStack Cloud
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 3 vulnerabilities.

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU51248

Risk: Medium

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25097

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote attacker to preform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.

Mitigation

Update the affected package squid to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP2-BCL - 12-SP4-LTSS

SUSE OpenStack Cloud: 9

squid-debugsource: before 3.5.21-26.35.1

squid-debuginfo: before 3.5.21-26.35.1

squid: before 3.5.21-26.35.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222392-1/


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.

2) Input validation error

EUVDB-ID: #VU53017

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-28651

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient input validation when resolving "urn:" resource identifiers. A remote attacker can trick a user behind the proxy server to click on a specially crafted "urn:" link that leads to a server under attacker's control and force Squid to consume arbitrarily large amounts of memory on the server. 

Mitigation

Update the affected package squid to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP2-BCL - 12-SP4-LTSS

SUSE OpenStack Cloud: 9

squid-debugsource: before 3.5.21-26.35.1

squid-debuginfo: before 3.5.21-26.35.1

squid: before 3.5.21-26.35.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222392-1/


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.

3) 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 OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP2-BCL - 12-SP4-LTSS

SUSE OpenStack Cloud: 9

squid-debugsource: before 3.5.21-26.35.1

squid-debuginfo: before 3.5.21-26.35.1

squid: before 3.5.21-26.35.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222392-1/


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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