SUSE update for glibc

1) Use-after-free

EUVDB-ID: #VU81453

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-2023-4813

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the gaih_inet() function when the getaddrinfo() function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package glibc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP2

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15: SP1 - SP2

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

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

SUSE Linux Enterprise High Performance Computing 15: SP1 - SP2

SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS: 15-SP1

SUSE CaaS Platform: 4.0

glibc-utils-src: before 2.26-150000.13.70.1

glibc-i18ndata: before 2.26-150000.13.70.1

glibc-info: before 2.26-150000.13.70.1

glibc-locale-base-32bit: before 2.26-150000.13.70.1

glibc-32bit-debuginfo: before 2.26-150000.13.70.1

glibc-devel-32bit: before 2.26-150000.13.70.1

glibc-devel-32bit-debuginfo: before 2.26-150000.13.70.1

glibc-32bit: before 2.26-150000.13.70.1

glibc-locale-base-32bit-debuginfo: before 2.26-150000.13.70.1

glibc-extra: before 2.26-150000.13.70.1

glibc-utils-debuginfo: before 2.26-150000.13.70.1

glibc-devel-debuginfo: before 2.26-150000.13.70.1

glibc-utils: before 2.26-150000.13.70.1

glibc-devel-static: before 2.26-150000.13.70.1

glibc-devel: before 2.26-150000.13.70.1

glibc-locale: before 2.26-150000.13.70.1

glibc-extra-debuginfo: before 2.26-150000.13.70.1

glibc-locale-base-debuginfo: before 2.26-150000.13.70.1

nscd: before 2.26-150000.13.70.1

glibc-debuginfo: before 2.26-150000.13.70.1

glibc: before 2.26-150000.13.70.1

glibc-utils-src-debugsource: before 2.26-150000.13.70.1

glibc-debugsource: before 2.26-150000.13.70.1

glibc-locale-base: before 2.26-150000.13.70.1

glibc-profile: before 2.26-150000.13.70.1

nscd-debuginfo: before 2.26-150000.13.70.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp2_ltss:15-SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp1_ltss:15-SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15_sp2_ltss:15-SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15_sp1_ltss:15-SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_caas_platform:4.0:*:*:*:*:*:*:*
• cpe:2.3:a:suse:glibc-utils-src:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-i18ndata:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-info:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-locale-base-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-devel-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-devel-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-locale-base-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-extra:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-utils-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-utils:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-devel-static:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-locale:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-locale-base-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:nscd:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-utils-src-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-locale-base:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:glibc-profile:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:nscd-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20234047-1/

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.