Vulnerability Details : CVE-2024-57256
An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.
Vulnerability category: Overflow
Products affected by CVE-2024-57256
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Exploit prediction scoring system (EPSS) score for CVE-2024-57256
0.03%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 7 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2024-57256
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.1
|
HIGH | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
0.5
|
6.0
|
MITRE | 2025-02-19 |
CWE ids for CVE-2024-57256
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The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: cve@mitre.org (Secondary)
References for CVE-2024-57256
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https://www.openwall.com/lists/oss-security/2025/02/17/2
oss-security - Multiple Vulnerabilities in U-Boot
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https://source.denx.de/u-boot/u-boot/-/commit/35f75d2a46e5859138c83a75cd2f4141c5479ab9
ext4: Fix integer overflow in ext4fs_read_symlink() (35f75d2a) · Commits · U-Boot / U-Boot · GitLab
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