CVE-2024-46777: udf: Avoid excessive partition lengths
In the Linux kernel, the following vulnerability has been resolved:
udf: Avoid excessive partition lengths
Avoid mounting filesystems where the partition would overflow the 32-bits used for block number. Also refuse to mount filesystems where the partition length is so large we cannot safely index bits in a block bitmap.
Other sources
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— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1 - Upgrade
Upgrade
debian/linux-6.1to a version that resolves this vulnerability.Fixed in 6.1.129-1~deb11u1 - Configuration
Update/patch the Linux kernel so the UDF filesystem refuses to mount partitions with excessive partition lengths that would overflow the 32-bits used for block numbers (block bitmap indexing).
Linux kernel UDF filesystem (udf) mount-time partition length handling = Refuse to mount when the partition would overflow the 32-bits used for block number / block bitmap indexing
Event History
Frequently Asked Questions
What is the severity of CVE-2024-46777?
CVE-2024-46777 is classified as a moderate severity vulnerability in the Linux kernel.
How do I fix CVE-2024-46777?
To fix CVE-2024-46777, upgrade your Linux kernel to a version that includes the patch, such as 5.10.226-1 or newer.
Which Linux kernel versions are affected by CVE-2024-46777?
CVE-2024-46777 affects Linux kernel versions prior to 5.10.226, 6.1.123, and several others between 4.20 and 6.6.51.
Is my system vulnerable to CVE-2024-46777?
You can determine if your system is vulnerable to CVE-2024-46777 by checking if you are using an affected Linux kernel version.
What impact does CVE-2024-46777 have on my system?
CVE-2024-46777 could lead to potential security risks when mounting filesystems with excessive partition lengths.