SUSE update for apache2



| Updated: 2024-12-06
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-25690
CVE-2023-27522
CWE-ID CWE-113
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
SUSE Linux Enterprise Server for SAP Applications 15
Operating systems & Components / Operating system

SUSE Linux Enterprise Server 15 SP3 LTSS
Operating systems & Components / Operating system

SUSE Linux Enterprise Server 15
Operating systems & Components / Operating system

SUSE Linux Enterprise Server 15 SP2 LTSS
Operating systems & Components / Operating system

SUSE Linux Enterprise Real Time 15
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing LTSS 15
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing ESPOS 15
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing 15
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
Operating systems & Components / Operating system

SUSE Enterprise Storage
Operating systems & Components / Operating system

SUSE Manager Retail Branch Server
Operating systems & Components / Operating system

SUSE Manager Server
Operating systems & Components / Operating system

SUSE Manager Proxy
Operating systems & Components / Operating system

apache2-doc
Operating systems & Components / Operating system package or component

apache2-devel
Operating systems & Components / Operating system package or component

apache2-debuginfo
Operating systems & Components / Operating system package or component

apache2-utils
Operating systems & Components / Operating system package or component

apache2-debugsource
Operating systems & Components / Operating system package or component

apache2-utils-debuginfo
Operating systems & Components / Operating system package or component

apache2-worker
Operating systems & Components / Operating system package or component

apache2
Operating systems & Components / Operating system package or component

apache2-worker-debuginfo
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

Vendor SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) HTTP response splitting

EUVDB-ID: #VU73107

Risk: Medium

CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2023-25690

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform HTTP splitting attacks.

The vulnerability exists due to software does not correclty process CRLF character sequences in mod_rewrite and mod_proxy. A remote attacker can send specially crafted request containing CRLF sequence and make the application to send a split HTTP response.

Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack.

Mitigation

Update the affected package apache2 to the latest version.

Vulnerable software versions

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

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15: SP2 - SP3

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3

SUSE Linux Enterprise High Performance Computing 15: SP2 - SP3

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

apache2-doc: before 2.4.51-150200.3.56.1

apache2-devel: before 2.4.51-150200.3.56.1

apache2-debuginfo: before 2.4.51-150200.3.56.1

apache2-utils: before 2.4.51-150200.3.56.1

apache2-debugsource: before 2.4.51-150200.3.56.1

apache2-utils-debuginfo: before 2.4.51-150200.3.56.1

apache2-worker: before 2.4.51-150200.3.56.1

apache2: before 2.4.51-150200.3.56.1

apache2-worker-debuginfo: before 2.4.51-150200.3.56.1

apache2-prefork-debuginfo: before 2.4.51-150200.3.56.1

apache2-prefork: before 2.4.51-150200.3.56.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20231573-1/


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.

2) HTTP response splitting

EUVDB-ID: #VU73106

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-27522

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP splitting attacks.

The vulnerability exists due to software does not correclty process CRLF character sequences in mod_proxy_uwsgi. A remote attacker can send specially crafted request containing CRLF sequence and make the application to send a split HTTP response.

Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack.

Mitigation

Update the affected package apache2 to the latest version.

Vulnerable software versions

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

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15: SP2 - SP3

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3

SUSE Linux Enterprise High Performance Computing 15: SP2 - SP3

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

apache2-doc: before 2.4.51-150200.3.56.1

apache2-devel: before 2.4.51-150200.3.56.1

apache2-debuginfo: before 2.4.51-150200.3.56.1

apache2-utils: before 2.4.51-150200.3.56.1

apache2-debugsource: before 2.4.51-150200.3.56.1

apache2-utils-debuginfo: before 2.4.51-150200.3.56.1

apache2-worker: before 2.4.51-150200.3.56.1

apache2: before 2.4.51-150200.3.56.1

apache2-worker-debuginfo: before 2.4.51-150200.3.56.1

apache2-prefork-debuginfo: before 2.4.51-150200.3.56.1

apache2-prefork: before 2.4.51-150200.3.56.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20231573-1/


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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