VulnerabilityModified
CVE-2019-19768
In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).
HIGH 7.5EPSS 4.15%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 4.15% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html
- https://bugzilla.kernel.org/show_bug.cgi?id=205711Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- https://security.netapp.com/advisory/ntap-20200103-0001/
- https://usn.ubuntu.com/4342-1/
- https://usn.ubuntu.com/4344-1/
- https://usn.ubuntu.com/4345-1/
- https://usn.ubuntu.com/4346-1/
- https://www.debian.org/security/2020/dsa-4698
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html
- https://bugzilla.kernel.org/show_bug.cgi?id=205711Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- https://security.netapp.com/advisory/ntap-20200103-0001/
- https://usn.ubuntu.com/4342-1/
- https://usn.ubuntu.com/4344-1/
- https://usn.ubuntu.com/4345-1/
- https://usn.ubuntu.com/4346-1/
- https://www.debian.org/security/2020/dsa-4698
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.