CVEvulnerability
CVE-2020-11725
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-04-12
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 4.6 MEDIUM — AV:L/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-704
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
Affected configurations
• linux linux kernel (<= 5.6.3)
Related
Weakness · CWE (1)
- CWE-704 Incorrect Type Conversion or Cast weakness
References
- https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/sound/core/control.c#L1434-L1474 Exploit, Third Party Advisory
- https://lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai%40suse.de/ lore.kernel.org
- https://twitter.com/yabbadabbadrew/status/1248632267028582400 Third Party Advisory
- https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/sound/core/control.c#L1434-L1474 Exploit, Third Party Advisory
- https://lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai%40suse.de/ lore.kernel.org
- https://twitter.com/yabbadabbadrew/status/1248632267028582400 Third Party Advisory