gsd-2022-39842
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
** DISPUTED ** An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur. NOTE: the original discoverer disputes that the overflow can actually happen.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2022-39842",
"description": "An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur.",
"id": "GSD-2022-39842",
"references": [
"https://alas.aws.amazon.com/cve/html/CVE-2022-39842.html",
"https://advisories.mageia.org/CVE-2022-39842.html",
"https://www.suse.com/security/cve/CVE-2022-39842.html",
"https://ubuntu.com/security/CVE-2022-39842",
"https://security.archlinux.org/CVE-2022-39842"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"id": "GSD-2022-39842",
"modified": "2023-12-13T01:19:20.435700Z",
"schema_version": "1.4.0"
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"id": "CVE-2022-39842",
"lastModified": "2024-04-11T01:16:27.670",
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"confidentialityImpact": "NONE",
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"scope": "UNCHANGED",
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"published": "2022-09-05T07:15:08.170",
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}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.