SUSE update for openldap2

1) NULL pointer dereference

EUVDB-ID: #VU77252

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-2953

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error within the ber_memalloc_x() function. A remote attacker can send specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package openldap2 to the latest version.

Vulnerable software versions

Development Tools Module: 15-SP4 - 15-SP5

Basesystem Module: 15-SP4 - 15-SP5

SUSE Linux Enterprise Micro for Rancher: 5.2 - 5.4

SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP5

SUSE Linux Enterprise Server 15: SP4 - SP5

SUSE Linux Enterprise Real Time 15: SP3 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP4 - SP5

SUSE Linux Enterprise Desktop 15: SP4 - SP5

SUSE Linux Enterprise Micro: 5.1 - 5.4

openSUSE Leap: 15.4 - 15.5

openSUSE Leap Micro: 5.3

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openldap2-doc: before 2.4.46-150200.14.14.1

openldap2-devel-32bit: before 2.4.46-150200.14.14.1

libldap-2_4-2-32bit: before 2.4.46-150200.14.14.1

libldap-2_4-2-32bit-debuginfo: before 2.4.46-150200.14.14.1

openldap2-ppolicy-check-password: before 1.2-150200.14.14.1

openldap2: before 2.4.46-150200.14.14.1

openldap2-back-sql: before 2.4.46-150200.14.14.1

openldap2-devel: before 2.4.46-150200.14.14.1

openldap2-client-debuginfo: before 2.4.46-150200.14.14.1

openldap2-back-sock-debuginfo: before 2.4.46-150200.14.14.1

openldap2-back-perl: before 2.4.46-150200.14.14.1

openldap2-contrib-debuginfo: before 2.4.46-150200.14.14.1

openldap2-back-perl-debuginfo: before 2.4.46-150200.14.14.1

openldap2-back-sock: before 2.4.46-150200.14.14.1

openldap2-contrib: before 2.4.46-150200.14.14.1

openldap2-back-sql-debuginfo: before 2.4.46-150200.14.14.1

openldap2-back-meta: before 2.4.46-150200.14.14.1

openldap2-ppolicy-check-password-debuginfo: before 1.2-150200.14.14.1

openldap2-client: before 2.4.46-150200.14.14.1

openldap2-back-meta-debuginfo: before 2.4.46-150200.14.14.1

openldap2-devel-static: before 2.4.46-150200.14.14.1

libldap-data: before 2.4.46-150200.14.14.1

openldap2-debugsource: before 2.4.46-150200.14.14.1

libldap-2_4-2-debuginfo: before 2.4.46-150200.14.14.1

openldap2-debuginfo: before 2.4.46-150200.14.14.1

libldap-2_4-2: before 2.4.46-150200.14.14.1

CPE2.3

• cpe:2.3:o:suse:development_tools_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:development_tools_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
• cpe:2.3:a:suse:openldap2-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-devel-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libldap-2_4-2-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libldap-2_4-2-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-ppolicy-check-password:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-back-sql:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-client-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-back-sock-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-back-perl:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-contrib-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-back-perl-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-back-sock:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-contrib:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-back-sql-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-back-meta:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-ppolicy-check-password-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-client:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-back-meta-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-devel-static:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libldap-data:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libldap-2_4-2-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openldap2-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libldap-2_4-2:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20232484-1/

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.