#VU100134 Improper error handling in Linux kernel - CVE-2024-50211

Vulnerability identifier: #VU100134

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-50211

CWE-ID: CWE-388

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper error handling within the udf_truncate_extents() function in fs/udf/truncate.c, within the udf_try_read_meta() function in fs/udf/partition.c, within the udf_map_block(), udf_extend_file(), udf_delete_aext() and inode_bmap() functions in fs/udf/inode.c, within the udf_fiiter_init() and udf_fiiter_append_blk() functions in fs/udf/directory.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/493447dd8336607fce426f7879e581095f6c606e
https://git.kernel.org/stable/c/b22d9a5698abf04341f8fbc30141e0673863c3a6
https://git.kernel.org/stable/c/c226964ec786f3797ed389a16392ce4357697d24

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.