Fedora 35 update for kernel
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-45469 |
| CWE-ID | CWE-125 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
Fedora Operating systems & Components / Operating system kernel Operating systems & Components / Operating system package or component |
| Vendor | Fedoraproject |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Out-of-bounds read
EUVDB-ID: #VU63578
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-45469
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to a boundary condition in the __f2fs_setxattr() function in fs/f2fs/xattr.c in the Linux kernel when an inode has an invalid last xattr entry. A local user can create a specially crafted f2fs image, trigger an out-of-bounds read error, and perform a denial of service attack or possibly execute arbitrary code.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsFedora: 35
kernel: before 5.15.12-200.fc35
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-2021-a7a558062e
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.
