USN-3847-2: Linux kernel (HWE) vulnerabilities
- Canonical Ubuntu 16.04
USN-3847-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS.
It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10902)
It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2018-12896)
Noam Rathaus discovered that a use-after-free vulnerability existed in the Infiniband implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2018-14734)
It was discovered that the YUREX USB device driver for the Linux kernel did not properly restrict user space reads or writes. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16276)
It was discovered that the BPF verifier in the Linux kernel did not correctly compute numeric bounds in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-18445)
Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. (CVE-2018-18690)
It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-18710)
CVEs contained in this USN include: CVE-2018-10902, CVE-2018-16276, CVE-2018-14734, CVE-2018-18445, CVE-2018-18710, CVE-2018-12896, CVE-2018-18690
Affected VMware Products and Versions
Severity is medium unless otherwise noted.
- Vulnerable Cloud Foundry components individually listed here.
- Impacted stemcells may be updated independently of upgrading Pivotal Application Service or PCF Isolation Segment.
- Pivotal Application Service includes vulnerable stemcells in the following releases:
- 2.4.x versions prior to 2.4.3
- 2.3.x versions prior to 2.3.7
- PCF Isolation Segment includes vulnerable stemcells in the following releases:
- 2.4.x versions prior to 2.4.3
- 2.3.x versions prior to 2.3.8
Users of affected versions should apply the following mitigation:
- The Cloud Foundry security team recommends upgrading BOSH to the affected OSS components listed here if applicable.
- Upgrade Pivotal products that use earlier versions of CF components to new Pivotal releases using new versions linked above. On the Pivotal Network product page for each release, check the Depends On section and/or Release Notes for this information.
- Releases that have fixed this issue include:
- Pivotal Application Service: 2.5.0, 2.4.3, 2.3.7
- PCF Isolation Segment: 2.5.0, 2.4.3, 2.3.7
- Pivotal Operations Manager: 2.5.0, 2.4.3, 2.3.8