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.
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MITRE
Status: PUBLISHED
Assigner: redhat
Published: 2024-04-04T13:48:12.848Z
Updated: 2024-09-16T18:43:04.693Z
Reserved: 2024-03-28T02:56:55.575Z
Link: CVE-2024-31081
Vulnrichment
Updated: 2024-08-02T01:46:04.378Z
NVD
Status : Awaiting Analysis
Published: 2024-04-04T14:15:10.593
Modified: 2024-09-16T19:16:09.940
Link: CVE-2024-31081
Redhat