CVE-2023-4039
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- CVE-2023-4039
CVE Details
| Release Date: | 2023-09-12 |
Description
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
| Platform | Errata | Release Date |
| Oracle Linux version 8 (cross-gcc) | ELSA-2023-28765 | 2023-09-12 |
| Oracle Linux version 8 (cross-gcc) | ELSA-2023-28766 | 2023-09-12 |
| Oracle Linux version 8 (gcc) | ELSA-2023-12788 | 2023-09-12 |
| Oracle Linux version 8 (gcc-toolset-11-gcc) | ELSA-2023-12788 | 2023-09-12 |
| Oracle Linux version 8 (gcc-toolset-12-gcc) | ELSA-2023-12788 | 2023-09-12 |
| Oracle Linux version 9 (cross-gcc) | ELSA-2023-28765 | 2023-09-12 |
| Oracle Linux version 9 (gcc) | ELSA-2023-12788 | 2023-09-12 |
| Oracle Linux version 9 (gcc-toolset-12-gcc) | ELSA-2023-12788 | 2023-09-12 |
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