gsd-2021-3697
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-3697",
"description": "A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.",
"id": "GSD-2021-3697",
"references": [
"https://security.archlinux.org/CVE-2021-3697",
"https://linux.oracle.com/cve/CVE-2021-3697.html",
"https://access.redhat.com/errata/RHSA-2022:5095",
"https://access.redhat.com/errata/RHSA-2022:5096",
"https://access.redhat.com/errata/RHSA-2022:5098",
"https://access.redhat.com/errata/RHSA-2022:5099",
"https://access.redhat.com/errata/RHSA-2022:5100",
"https://www.suse.com/security/cve/CVE-2021-3697.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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],
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"id": "GSD-2021-3697",
"modified": "2023-12-13T01:23:34.199224Z",
"schema_version": "1.4.0"
}
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}
]
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"lastModifiedDate": "2023-09-13T16:15Z",
"publishedDate": "2022-07-06T16:15Z"
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- 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.