SUSE update for gcc7

1) Security features bypass

EUVDB-ID: #VU81045

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-4039

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to the GCC's stack smashing protection does not detect or defend against overflows of dynamically-sized local variables on AArch64 targets. A remote attacker can bypass expected security restrictions and successfully exploit buffer overflow vulnerabilities.

Mitigation

Update the affected package gcc7 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP4

SUSE Linux Enterprise Server 15: SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP4

SUSE Linux Enterprise Desktop 15: SP4

Basesystem Module: 15-SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

gcc7-info: before 7.5.0+r278197-150000.4.35.1

libubsan0: before 7.5.0+r278197-150000.4.35.1

gcc7-ada-debuginfo: before 7.5.0+r278197-150000.4.35.1

gcc7-debugsource: before 7.5.0+r278197-150000.4.35.1

libstdc++6-devel-gcc7: before 7.5.0+r278197-150000.4.35.1

libgfortran4-debuginfo: before 7.5.0+r278197-150000.4.35.1

libasan4: before 7.5.0+r278197-150000.4.35.1

gcc7: before 7.5.0+r278197-150000.4.35.1

gcc7-fortran: before 7.5.0+r278197-150000.4.35.1

libgfortran4: before 7.5.0+r278197-150000.4.35.1

libubsan0-debuginfo: before 7.5.0+r278197-150000.4.35.1

cpp7-debuginfo: before 7.5.0+r278197-150000.4.35.1

gcc7-fortran-debuginfo: before 7.5.0+r278197-150000.4.35.1

cpp7: before 7.5.0+r278197-150000.4.35.1

gcc7-ada: before 7.5.0+r278197-150000.4.35.1

gcc7-c++: before 7.5.0+r278197-150000.4.35.1

gcc7-debuginfo: before 7.5.0+r278197-150000.4.35.1

gcc7-c++-debuginfo: before 7.5.0+r278197-150000.4.35.1

libada7: before 7.5.0+r278197-150000.4.35.1

gcc7-locale: before 7.5.0+r278197-150000.4.35.1

libasan4-debuginfo: before 7.5.0+r278197-150000.4.35.1

gcc7-objc: before 7.5.0+r278197-150000.4.35.1

libada7-debuginfo: before 7.5.0+r278197-150000.4.35.1

gcc7-objc-debuginfo: before 7.5.0+r278197-150000.4.35.1

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: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:basesystem_module:15-SP4:*:*:*:*:*:*:*
• 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:gcc7-info:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libubsan0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7-ada-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libstdc_plus_plus_6-devel-gcc7:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libgfortran4-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libasan4:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7-fortran:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libgfortran4:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libubsan0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cpp7-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7-fortran-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cpp7:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7-ada:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7-c_plus_plus:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7-c_plus_plus_-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libada7:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7-locale:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libasan4-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7-objc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libada7-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gcc7-objc-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20233686-1/

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.