Out-of-bounds read in Linux kernel - CVE-2019-15926
Published: September 4, 2019 / Updated: July 17, 2020
Vulnerability identifier: #VU30792
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-15926
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.
An issue was discovered in the Linux kernel before 5.2.3. Out of bounds access exists in the functions ath6kl_wmi_pstream_timeout_event_rx and ath6kl_wmi_cac_event_rx in the file drivers/net/wireless/ath/ath6kl/wmi.c.
Affected software
Linux kernel
Ubuntu
linux (Ubuntu package)
linux-raspi2 (Ubuntu package)
linux-aws (Ubuntu package)
linux-kvm (Ubuntu package)
linux-snapdragon (Ubuntu package)
linux-hwe (Ubuntu package)
linux-gcp (Ubuntu package)
linux-azure (Ubuntu package)
linux-gke-5.0 (Ubuntu package)
Ubuntu
linux (Ubuntu package)
linux-raspi2 (Ubuntu package)
linux-aws (Ubuntu package)
linux-kvm (Ubuntu package)
linux-snapdragon (Ubuntu package)
linux-hwe (Ubuntu package)
linux-gcp (Ubuntu package)
linux-azure (Ubuntu package)
linux-gke-5.0 (Ubuntu package)
How to mitigate CVE-2019-15926
Install update from vendor's website.
Linux kernel - update to 5.2.3
linux (Ubuntu package) - addressed in versions 4.4.0-165.193, 5.0.0-31.33
linux-raspi2 (Ubuntu package) - addressed in versions 4.4.0-1123.132, 5.0.0-1019.19
linux-aws (Ubuntu package) - addressed in versions 4.4.0-1095.106, 5.0.0-1018.20
linux-kvm (Ubuntu package) - addressed in versions 4.4.0-1059.66, 5.0.0-1019.20
linux-snapdragon (Ubuntu package) - addressed in versions 4.4.0-1127.135, 5.0.0-1023.24
linux-hwe (Ubuntu package) - update to 5.0.0-31.33~18.04.1
linux-gcp (Ubuntu package) - update to 5.0.0-1020.20
linux-azure (Ubuntu package) - update to 5.0.0-1022.23
linux-gke-5.0 (Ubuntu package) - update to 5.0.0-1020.20~18.04.1
linux (Ubuntu package) - addressed in versions 4.4.0-165.193, 5.0.0-31.33
linux-raspi2 (Ubuntu package) - addressed in versions 4.4.0-1123.132, 5.0.0-1019.19
linux-aws (Ubuntu package) - addressed in versions 4.4.0-1095.106, 5.0.0-1018.20
linux-kvm (Ubuntu package) - addressed in versions 4.4.0-1059.66, 5.0.0-1019.20
linux-snapdragon (Ubuntu package) - addressed in versions 4.4.0-1127.135, 5.0.0-1023.24
linux-hwe (Ubuntu package) - update to 5.0.0-31.33~18.04.1
linux-gcp (Ubuntu package) - update to 5.0.0-1020.20
linux-azure (Ubuntu package) - update to 5.0.0-1022.23
linux-gke-5.0 (Ubuntu package) - update to 5.0.0-1020.20~18.04.1
External References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5d6751eaff672ea77642e74e92e6c0ac7f9709ab
- https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html
- https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html
- https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
- https://security.netapp.com/advisory/ntap-20191004-0001/
- https://support.f5.com/csp/article/K32034450
- https://support.f5.com/csp/article/K32034450?utm_source=f5support&utm_medium=RSS
- https://usn.ubuntu.com/4145-1/
- https://usn.ubuntu.com/4147-1/