CVE-2024-45780
published 2025-03-03CVE-2024-45780: A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation…
PriorityP431medium6.7CVSS 3.1
AVLACLPRHUINSUCHIHAH
EPSS
0.26%
17.7th percentile
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | grub2 | < grub2 2.12-6 (forky) | grub2 2.12-6 (forky) |
| gnu | grub2 | <= 2.12 | — |
| gnu | grub2 | >= 0 < 2.12-6 | 2.12-6 |
| gnu | grub2 | >= 0 < 2.12-6 | 2.12-6 |
| msrc | azl3_grub2_2.06-24_on_azure_linux_3.0 | — | — |
| msrc | azl3_grub2_2.06-25_on_azure_linux_3.0 | — | — |
| msrc | cbl2_grub2_2.06-14_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_grub2_2.06-15_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.16.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
osv6.7MEDIUM
vendor_debian6.7MEDIUM
vendor_msrc6.7MEDIUM
vendor_redhat6.7MEDIUM
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Microsoft
Grub2: fs/tar: integer overflow causes heap oob write
vendor_msrc·2025-03-11·CVSS 6.7
CVE-2024-45780 [MEDIUM] CWE-787 Grub2: fs/tar: integer overflow causes heap oob write
Grub2: fs/tar: integer overflow causes heap oob write
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
redhat: redhat
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn
Red Hat
grub2: fs/tar: Integer Overflow causes Heap OOB Write
vendor_redhat·2025-02-18·CVSS 6.7
CVE-2024-45780 [MEDIUM] CWE-787 grub2: fs/tar: Integer Overflow causes Heap OOB Write
grub2: fs/tar: Integer Overflow causes Heap OOB Write
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections.
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows an attack
Debian
CVE-2024-45780: grub2 - A flaw was found in grub2. When reading tar files, grub2 allocates an internal b...
vendor_debian·2024·CVSS 6.7
CVE-2024-45780 [MEDIUM] CVE-2024-45780: grub2 - A flaw was found in grub2. When reading tar files, grub2 allocates an internal b...
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections.
Scope: local
bookworm: open
bullseye: open
forky: resolved (fixed in 2.12-6)
sid: resolved (fixed in 2.12-6)
trixie: resolved (fixed in 2.12-6)
OSV
CVE-2024-45780: A flaw was found in grub2
osv·2025-03-03·CVSS 6.7
CVE-2024-45780 [MEDIUM] CVE-2024-45780: A flaw was found in grub2
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections.
GHSA
GHSA-xxc4-h4cm-j5r2: A flaw was found in grub2
ghsa_unreviewed·2025-03-03
CVE-2024-45780 [MEDIUM] CWE-787 GHSA-xxc4-h4cm-j5r2: A flaw was found in grub2
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections.
No detection rules found.
No public exploits indexed.
2025-03-03
Published