CVE-2023-4039
描述
**DISPUTED**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. NOTE: The GCC project argues that this is a missed hardening bug and not a vulnerability by itself.
如何修補 CVE-2023-4039
要修補 CVE-2023-4039,請將受影響套件升級到下列已修補版本。
- —升級至 13.2.1_git20231014-r0 或更新版本
- —未列出修補版本
- —未列出修補版本
- —升級至 12.2.0-14+deb12u1 或更新版本
- —升級至 13.2.0-4 或更新版本
- —未列出修補版本
CVE-2023-4039 正在被利用嗎?
低 — EPSS 為 0.7%,目前沒有觀察到大規模利用活動。
受影響套件(6)
- from 0, < 13.2.1_git20231014-r0
- from 0
- from 0
- from 0, < 12.2.0-14+deb12u1
- from 0, < 13.2.0-4
- from 0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |