SUSE SLED15 / SLES15 Security Update : gcc7 (SUSE-SU-2023:3686-1)

medium Nessus Plugin ID 181658

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Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:3686-1 advisory.

- A failure in the -fstack-protector feature in GCC-based toolchains that target AArch64 allows an attacker to exploit an existing buffer overflow in dynamically-sized local variables in your application without this being detected. This stack-protector failure only applies to C99-style dynamically-sized local variables or those created using alloca(). The stack-protector operates as intended for statically-sized local variables. The default behavior when the stack-protector detects an overflow is to terminate your application, resulting in controlled loss of availability. An attacker who can exploit a buffer overflow without triggering the stack-protector might be able to change program flow control to cause an uncontrolled loss of availability or to go further and affect confidentiality or integrity.
(CVE-2023-4039)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1195517

https://bugzilla.suse.com/1196861

https://bugzilla.suse.com/1204505

https://bugzilla.suse.com/1205145

https://bugzilla.suse.com/1214052

http://www.nessus.org/u?0da247b3

https://www.suse.com/security/cve/CVE-2023-4039

Plugin Details

Severity: Medium

ID: 181658

File Name: suse_SU-2023-3686-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/20/2023

Updated: 9/21/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.0

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.1

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2023-4039

CVSS v3

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 4.3

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libubsan0-32bit, p-cpe:/a:novell:suse_linux:gcc7, p-cpe:/a:novell:suse_linux:libasan4, p-cpe:/a:novell:suse_linux:libada7, p-cpe:/a:novell:suse_linux:libcilkrts5, p-cpe:/a:novell:suse_linux:gcc7-locale, p-cpe:/a:novell:suse_linux:gcc7-ada, p-cpe:/a:novell:suse_linux:gcc7-c%2b%2b-32bit, p-cpe:/a:novell:suse_linux:libgfortran4-32bit, p-cpe:/a:novell:suse_linux:libstdc%2b%2b6-devel-gcc7-32bit, p-cpe:/a:novell:suse_linux:gcc7-32bit, p-cpe:/a:novell:suse_linux:libasan4-32bit, p-cpe:/a:novell:suse_linux:gcc7-fortran-32bit, p-cpe:/a:novell:suse_linux:gcc7-info, p-cpe:/a:novell:suse_linux:libstdc%2b%2b6-devel-gcc7, p-cpe:/a:novell:suse_linux:libgfortran4, p-cpe:/a:novell:suse_linux:gcc7-c%2b%2b, p-cpe:/a:novell:suse_linux:libcilkrts5-32bit, p-cpe:/a:novell:suse_linux:gcc7-objc, cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:cross-nvptx-gcc7, p-cpe:/a:novell:suse_linux:gcc7-fortran, p-cpe:/a:novell:suse_linux:libubsan0, p-cpe:/a:novell:suse_linux:cpp7, p-cpe:/a:novell:suse_linux:cross-nvptx-newlib7-devel

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/19/2023

Vulnerability Publication Date: 9/8/2023

Reference Information

CVE: CVE-2023-4039

SuSE: SUSE-SU-2023:3686-1