SUSE update for ncurses

1) Input validation error

EUVDB-ID: #VU84723

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-2023-50495

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 validation of user-supplied input within the _nc_wrap_entry() function. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package ncurses to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.1 - 5.5

openSUSE Leap Micro: 5.3 - 5.4

Development Tools Module: 15-SP4 - 15-SP5

Legacy 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: SP4 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP4 - SP5

SUSE Linux Enterprise Desktop 15: SP4 - SP5

openSUSE Leap: 15.4 - 15.5

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

tack-debuginfo: before 6.1-150000.5.20.1

terminfo-iterm: before 6.1-150000.5.20.1

ncurses-devel-debuginfo: before 6.1-150000.5.20.1

ncurses5-devel: before 6.1-150000.5.20.1

ncurses-devel: before 6.1-150000.5.20.1

terminfo-screen: before 6.1-150000.5.20.1

tack: before 6.1-150000.5.20.1

libncurses5-debuginfo: before 6.1-150000.5.20.1

libncurses5: before 6.1-150000.5.20.1

libncurses6-32bit-debuginfo: before 6.1-150000.5.20.1

ncurses-devel-32bit: before 6.1-150000.5.20.1

libncurses5-32bit: before 6.1-150000.5.20.1

ncurses5-devel-32bit: before 6.1-150000.5.20.1

ncurses-devel-32bit-debuginfo: before 6.1-150000.5.20.1

libncurses5-32bit-debuginfo: before 6.1-150000.5.20.1

libncurses6-32bit: before 6.1-150000.5.20.1

libncurses6: before 6.1-150000.5.20.1

terminfo-base: before 6.1-150000.5.20.1

ncurses-utils: before 6.1-150000.5.20.1

ncurses-debugsource: before 6.1-150000.5.20.1

terminfo: before 6.1-150000.5.20.1

libncurses6-debuginfo: before 6.1-150000.5.20.1

ncurses-utils-debuginfo: before 6.1-150000.5.20.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap_micro:5.4:*:*:*:*:*:*:*
• 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:legacy_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:legacy_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• 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:opensuse_leap:15.4:*:*:*:*:*:*:*
• 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:o:suse:tack-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:terminfo-iterm:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ncurses-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ncurses5-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ncurses-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:terminfo-screen:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:tack:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libncurses5-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libncurses5:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libncurses6-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ncurses-devel-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libncurses5-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ncurses5-devel-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ncurses-devel-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libncurses5-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libncurses6-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libncurses6:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:terminfo-base:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ncurses-utils:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ncurses-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:terminfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libncurses6-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ncurses-utils-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20234891-1/

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.