CVE-2019-19807
High
Description
In the Linux kernel before 5.3.11, sound/core/timer.c has a use-after-free caused by erroneous code refactoring, aka CID-e7af6307a8a5. This is related to snd_timer_open and snd_timer_close_locked. The timeri variable was originally intended to be for a newly created timer instance, but was used for a different purpose after refactoring.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedDec 15, 2019
First seenDec 15, 2019
How to fix
Update
- linux linux_kernel4.9.201, 4.14.154, 4.19.84, 5.3.11 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.9.199 ≤ v < 4.9.201, 4.14.152 ≤ v < 4.14.154, 4.19.82 ≤ v < 4.19.84, 5.2 ≤ v < 5.3.11 | 4.9.201, 4.14.154, 4.19.84, 5.3.11 |
| canonical ubuntu_linux | 14.04, 16.04, 18.04, 19.10 | — |
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