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.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/31xxx/CVE-2024-31081.json",
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-126"
    ]
}

References

Affected packages

Git / gitlab.freedesktop.org/xorg/xserver

Affected ranges

Type

GIT

Repo

https://gitlab.freedesktop.org/xorg/xserver

Events

Introduced

4257023c1e40387aff096d5f00d746d3f7a521b4

Last affected

4257023c1e40387aff096d5f00d746d3f7a521b4

Database specific

{
    "extracted_events": [
        {
            "introduced": "1.7.0"
        },
        {
            "last_affected": "1.7.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

1.*

1.7.0

xorg-server-1.*

xorg-server-1.7.0

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-31081.json"