SB20191113112 - Ubuntu update for linux-azure
Published: November 13, 2019 Updated: November 8, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2018-12207)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 5.9 [CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to perform denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the mechanism responsible for error handling on some Intel platforms. A local user of a guest operating system can use a specially crafted application to trigger memory corruption and cause the host system to stop responding.
Successful exploitation of this vulnerability may result in a denial of service (DoS) attack.
Below is the list of processor families that are affected by this vulnerability:
Client:
- Intel Core i3 Processors
- Intel Core i5 Processors
- Intel Core i7 Processors
- Intel Core m Processor Family
- 2nd generation Intel Core Processors
- 3rd generation Intel Core Processors
- 4th generation Intel Core Processors
- 5th generation Intel Core Processors
- 6th generation Intel Core Processors
- 7th generation Intel Core Processors
- 8th generation Intel Core Processors
- Intel Core X-series Processor Family
- Intel Pentium Gold Processor Series
- Intel Celeron Processor G Series
Server:
- 2nd Generation Intel Xeon Scalable Processors
- Intel Xeon Scalable Processors
- Intel Xeon Processor E7 v4 Family
- Intel Xeon Processor E7 v3 Family
- Intel Xeon Processor E7 v2 Family
- Intel Xeon Processor E7 Family
- Intel Xeon Processor E5 v4 Family
- Intel Xeon Processor E5 v3 Family
- Intel Xeon Processor E5 v2 Family
- Intel Xeon Processor E5 Family
- Intel Xeon Processor E3 v6 Family
- Intel Xeon Processor E3 v5 Family
- Intel Xeon Processor E3 v4 Family
- Intel Xeon Processor E3 v3 Family
- Intel Xeon Processor E3 v2 Family
- Intel Xeon Processor E3 Family
- Intel Xeon E Processor
- Intel Xeon D Processor
- Intel Xeon W Processor
- Legacy Intel Xeon Processor
2) Resource management error (CVE-ID: CVE-2019-11135)
CWE-ID: CWE-399 - Resource Management Errors
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the TSX Asynchronous Abort (TAA) in Intel CPUs. The TAA condition, on some microprocessors utilizing speculative execution, may allow an authenticated user to potentially enable information disclosure via a side channel.3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-17052)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the ax25_create() function in net/ax25/af_ax25.c in the AF_AX25 network module for the Linux kernel does not enforce CAP_NET_RAW when creating raw sockets. A local unprivileged user can create raw sockets on the system.
4) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-17053)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the ieee802154_create() function in net/ieee802154/socket.c in the AF_IEEE802154 network module for the Linux kernel does not enforce CAP_NET_RAW when creating raw sockets. A local unprivileged user can create raw sockets on the system.
5) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-17054)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the atalk_create() function in net/appletalk/ddp.c in the AF_APPLETALK network module for the Linux kernel does not enforce CAP_NET_RAW when creating raw sockets. A local unprivileged user can create raw sockets on the system.
6) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-17055)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the base_sock_create in drivers/isdn/mISDN/socket.c in the AF_ISDN network module for the Linux kernel does not enforce CAP_NET_RAW. A local unprivileged user can create a raw socket.
7) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-17056)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the llcp_sock_create() function in net/nfc/llcp_sock.c in the AF_NFC network module for the Linux kernel does not enforce CAP_NET_RAW. A local unprivileged user can create a raw socket.
Remediation
Install update from vendor's website.