suse-su-2025:02727-1
Vulnerability from csaf_suse
Published
2025-08-07 09:02
Modified
2025-08-07 09:02
Summary
Security update for grub2
Notes
Title of the patch
Security update for grub2
Description of the patch
This update for grub2 fixes the following issues:
- CVE-2024-56738: Fixed side-channel attack due to not constant-time algorithm in grub_crypto_memcmp (bsc#1234959)
Patchnames
SUSE-2025-2727,SUSE-SLE-Micro-5.3-2025-2727,SUSE-SLE-Micro-5.4-2025-2727
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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"category": "general",
"text": "GNU GRUB (aka GRUB2) through 2.12 does not use a constant-time algorithm for grub_crypto_memcmp and thus allows side-channel attacks.",
"title": "CVE description"
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{
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"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
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"threats": [
{
"category": "impact",
"date": "2025-08-07T09:02:11Z",
"details": "moderate"
}
],
"title": "CVE-2024-56738"
}
]
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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