Vulnerability 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
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 5.6.3 |
References
- https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/ExploitThird Party Advisory
- https://lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai%40suse.de/
- https://twitter.com/yabbadabbadrew/status/1248632267028582400Third Party Advisory
- https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/ExploitThird Party Advisory
- https://lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai%40suse.de/
- https://twitter.com/yabbadabbadrew/status/1248632267028582400Third Party Advisory
FAQ
What is CVE-2020-11725?
CVE-2020-11725 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 effec...
How severe is CVE-2020-11725?
CVE-2020-11725 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-11725?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.