VulnerabilityModified
CVE-2019-19807
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.
HIGH 7.8EPSS 0.55%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.55% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel · canonical/ubuntu linux
- Source
- cve@mitre.org
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e7af6307a8a54f0b873960b32b6a644f2d0fbd97Exploit, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/e7af6307a8a54f0b873960b32b6a644f2d0fbd97Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
- https://usn.ubuntu.com/4225-1/Third Party Advisory
- https://usn.ubuntu.com/4227-1/Third Party Advisory
- https://usn.ubuntu.com/4227-2/Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e7af6307a8a54f0b873960b32b6a644f2d0fbd97Exploit, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/e7af6307a8a54f0b873960b32b6a644f2d0fbd97Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
- https://usn.ubuntu.com/4225-1/Third Party Advisory
- https://usn.ubuntu.com/4227-1/Third Party Advisory
- https://usn.ubuntu.com/4227-2/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.