Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-47509 |
CWE-ID | CWE-119 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
Linux kernel Operating systems & Components / Operating system |
Vendor | Linux Foundation |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU93398
Risk: Low
CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-47509
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the snd_pcm_oss_set_fragment1() function in sound/core/oss/pcm_oss.c. A local user can perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsLinux kernel: All versions
External linkshttp://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc
http://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257
http://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aeb
http://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28a
http://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3
http://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43c
http://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2
http://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2
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.