CVE-2020-11725

Public Exploit

Description

snd_ctl_elem_add in sound/core/control.c in the Linux kernel through 5.6.3 has a count=info->owner line, which later affects a private_size*count multiplication for unspecified "interesting side effects." NOTE: kernel engineers dispute this finding, because it could be relevant only if new callers were added that were unfamiliar with the misuse of the info->owner field to represent data unrelated to the "owner" concept. The existing callers, SNDRV_CTL_IOCTL_ELEM_ADD and SNDRV_CTL_IOCTL_ELEM_REPLACE, have been designed to misuse the info->owner field in a safe way

7.8

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.07%

Third-Party Advisory github.com Third-Party Advisory twitter.com

Affected: n/a n/a

References

Link	Tags
https://twitter.com/yabbadabbadrew/status/1248632267028582400	third party advisory
https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/sound/core/control.c#L1434-L1474	third party advisory exploit
https://lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai%40suse.de/

Frequently Asked Questions

What is the severity of CVE-2020-11725?: CVE-2020-11725 has been scored as a high severity vulnerability.
How to fix CVE-2020-11725?: To fix CVE-2020-11725, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-11725 being actively exploited in the wild?: It is possible that CVE-2020-11725 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.