CVE Details

Release Date:2023-09-12


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.

See more information about CVE-2023-4039 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 4.8 Base Metrics: AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Access Vector: Network Attack Complexity: High
Privileges Required: None User Interaction: None
Scope: Unchanged Confidentiality Impact: Low
Integrity Impact: Low Availability Impact: None

Errata information

PlatformErrataRelease Date
Oracle Linux version 8 (cross-gcc)ELSA-2023-287652023-09-12
Oracle Linux version 8 (cross-gcc)ELSA-2023-287662023-09-12
Oracle Linux version 8 (gcc)ELSA-2023-127882023-09-12
Oracle Linux version 8 (gcc-toolset-11-gcc)ELSA-2023-127882023-09-12
Oracle Linux version 8 (gcc-toolset-12-gcc)ELSA-2023-127882023-09-12
Oracle Linux version 9 (cross-gcc)ELSA-2023-287652023-09-12
Oracle Linux version 9 (gcc)ELSA-2023-127882023-09-12
Oracle Linux version 9 (gcc-toolset-12-gcc)ELSA-2023-127882023-09-12

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team