SB2019042415 - Race condition in Linux kernel
Published: April 24, 2019 Updated: July 17, 2020
Security Bulletin ID
SB2019042415
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Race condition (CVE-ID: CVE-2019-11486)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local authenticated user to execute arbitrary code.
The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c in the Linux kernel before 5.0.8 has multiple race conditions.
Remediation
Install update from vendor's website.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.html
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html
- http://www.openwall.com/lists/oss-security/2019/04/29/1
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.112
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.35
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.169
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.8
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c7084edc3f6d67750f50d4183134c4fb5712a5c8
- https://github.com/torvalds/linux/commit/c7084edc3f6d67750f50d4183134c4fb5712a5c8
- https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html
- https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html
- https://lists.debian.org/debian-lts-announce/2019/06/msg00011.html
- https://seclists.org/bugtraq/2019/Jun/26
- https://security.netapp.com/advisory/ntap-20190517-0005/
- https://support.f5.com/csp/article/K50222414
- https://www.debian.org/security/2019/dsa-4465