摘要:
A heap-based buffer over-read vulnerability was found in the X.org server s ProcXIPassiveGrabDevice() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker s inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.
安全等级: Low
公告ID: KylinSec-SA-2024-2528
发布日期: 2024年5月27日
关联CVE: CVE-2024-31081
A heap-based buffer over-read vulnerability was found in the X.org server s ProcXIPassiveGrabDevice() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker s inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2024-31081 | KY3.4-4A | tigervnc | Unaffected |
| CVE-2024-31081 | KY3.4-5 | tigervnc | Unaffected |
| CVE-2024-31081 | KY3.5.1 | tigervnc | Unaffected |
| CVE-2024-31081 | KY3.5.2 | tigervnc | Unaffected |
| CVE-2024-31081 | V6 | tigervnc | Unaffected |
