Vulnerability in Linux Kernel
CVE-2020-11725
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
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (41.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- twitter.com/yabbadabbadrew/status/1248632267028582400 (Third Party Advisory)
- github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/sound/c… (Exploit, Third Party Advisory)
- lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai@suse.de/
Frequently asked questions
- What is CVE-2020-11725?
- CVE-2020-11725 is a high-severity vulnerability in Linux Kernel, classified under Incorrect Type Conversion or Cast. CVSS score: 7.8/10. Published 2020-04-12.
- How severe is CVE-2020-11725?
- High severity. CVSS v3 base score is 7.8 out of 10.