SUSE update for apache2

Published: 2022-01-17 | Updated: 2024-10-25

Risk	Critical
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-44224 CVE-2021-44790
CWE-ID	CWE-918 CWE-119
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #2 is available.
Vulnerable software Subscribe	SUSE Linux Enterprise Module for Packagehub Subpackages Operating systems & Components / Operating system package or component apache2-utils-debuginfo Operating systems & Components / Operating system package or component apache2-utils Operating systems & Components / Operating system package or component apache2-prefork-debuginfo Operating systems & Components / Operating system package or component apache2-prefork Operating systems & Components / Operating system package or component apache2 Operating systems & Components / Operating system package or component apache2-event-debuginfo Operating systems & Components / Operating system package or component apache2-event Operating systems & Components / Operating system package or component apache2-doc Operating systems & Components / Operating system package or component apache2-worker-debuginfo Operating systems & Components / Operating system package or component apache2-worker Operating systems & Components / Operating system package or component apache2-devel Operating systems & Components / Operating system package or component apache2-debugsource Operating systems & Components / Operating system package or component apache2-debuginfo Operating systems & Components / Operating system package or component SUSE Linux Enterprise Module for Server Applications Operating systems & Components / Operating system SUSE Linux Enterprise Module for Basesystem Operating systems & Components / Operating system
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Server-Side Request Forgery (SSRF)

EUVDB-ID: #VU59057

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-2021-44224

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input in forward proxy configurations. A remote attacker can send a specially crafted HTTP request and trick the web server to initiate requests to arbitrary systems or cause NULL pointer dereference error and crash the web server.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

SSRF if possible for configuration that mix forward and reverse proxy.

Mitigation

Update the affected package apache2 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Packagehub Subpackages: 15-SP3

SUSE Linux Enterprise Module for Server Applications: 15-SP2 - 15-SP3

SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3

apache2-utils-debuginfo: before 2.4.51-3.37.1

apache2-utils: before 2.4.51-3.37.1

apache2-prefork-debuginfo: before 2.4.51-3.37.1

apache2-prefork: before 2.4.51-3.37.1

apache2: before 2.4.51-3.37.1

apache2-event-debuginfo: before 2.4.51-3.37.1

apache2-event: before 2.4.51-3.37.1

apache2-doc: before 2.4.51-3.37.1

apache2-worker-debuginfo: before 2.4.51-3.37.1

apache2-worker: before 2.4.51-3.37.1

apache2-devel: before 2.4.51-3.37.1

apache2-debugsource: before 2.4.51-3.37.1

apache2-debuginfo: before 2.4.51-3.37.1

CPE2.3

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20220091-1/

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) Buffer overflow

EUVDB-ID: #VU59056

Risk: Critical

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2021-44790

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when parsing multipart content in mod_lua. A remote attacker can send a specially crafted HTTP request to the affected web server, trigger buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package apache2 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Packagehub Subpackages: 15-SP3

SUSE Linux Enterprise Module for Server Applications: 15-SP2 - 15-SP3

SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3

apache2-utils-debuginfo: before 2.4.51-3.37.1

apache2-utils: before 2.4.51-3.37.1

apache2-prefork-debuginfo: before 2.4.51-3.37.1

apache2-prefork: before 2.4.51-3.37.1

apache2: before 2.4.51-3.37.1

apache2-event-debuginfo: before 2.4.51-3.37.1

apache2-event: before 2.4.51-3.37.1

apache2-doc: before 2.4.51-3.37.1

apache2-worker-debuginfo: before 2.4.51-3.37.1

apache2-worker: before 2.4.51-3.37.1

apache2-devel: before 2.4.51-3.37.1

apache2-debugsource: before 2.4.51-3.37.1

apache2-debuginfo: before 2.4.51-3.37.1

CPE2.3

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20220091-1/

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. However, proof of concept for this vulnerability is available.