Vulnerability identifier: #VU94842
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:
CWE-ID:
CWE-20
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 input validation within the ocfs2_check_dir_entry(), ocfs2_search_dirblock(), __ocfs2_delete_entry(), __ocfs2_add_entry(), ocfs2_dir_foreach_blk_id(), ocfs2_dir_foreach_blk_el(), ocfs2_find_dir_space_id() and ocfs2_find_dir_space_el() functions in fs/ocfs2/dir.c. A local user can perform a denial of service (DoS) attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel: 4.19 - 4.19.318, 5.4 - 5.4.280, 5.10 - 5.10.222, 5.15 - 5.15.163, 6.1 - 6.1.101, 6.6 - 6.6.42, 6.10 - 6.10.1
External links
https://git.kernel.org/stable/c/13d38c00df97289e6fba2e54193959293fd910d2
https://git.kernel.org/stable/c/564d23cc5b216211e1694d53f7e45959396874d0
https://git.kernel.org/stable/c/77495e5da5cb110a8fed27b052c77853fe282176
https://git.kernel.org/stable/c/53de17ad01cb5f6f8426f597e9d5c87d4cf53bb7
https://git.kernel.org/stable/c/fd65685594ee707cbf3ddf22ebb73697786ac114
https://git.kernel.org/stable/c/e05a24289db90f76ff606086aadd62d068a88dcd
https://git.kernel.org/stable/c/624b380074f0dc209fb8706db3295c735079f34c
https://git.kernel.org/stable/c/edb2e67dd4626b06fd7eb37252d5067912e78d59
https://git.kernel.org/stable/c/255547c6bb8940a97eea94ef9d464ea5967763fb
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.319
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.223
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.164
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.281
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.102
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.2
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.43
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?