=========================================================================Kernel Live Patch Security Notice 0063-1
February 19, 2020

linux vulnerability
=========================================================================
A security issue affects these releases of Ubuntu:

| Series           | Base kernel  | Arch     | flavors          |
|------------------+--------------+----------+------------------|
| Ubuntu 18.04 LTS | 4.15.0       | amd64    | aws              |
| Ubuntu 18.04 LTS | 4.15.0       | amd64    | generic          |
| Ubuntu 18.04 LTS | 4.15.0       | amd64    | lowlatency       |
| Ubuntu 18.04 LTS | 4.15.0       | amd64    | oem              |
| Ubuntu 18.04 LTS | 5.0.0        | amd64    | azure            |
| Ubuntu 18.04 LTS | 5.0.0        | amd64    | gcp              |
| Ubuntu 14.04 LTS | 4.4.0        | amd64    | generic          |
| Ubuntu 14.04 LTS | 4.4.0        | amd64    | lowlatency       |
| Ubuntu 16.04 LTS | 4.4.0        | amd64    | aws              |
| Ubuntu 16.04 LTS | 4.4.0        | amd64    | generic          |
| Ubuntu 16.04 LTS | 4.4.0        | amd64    | lowlatency       |
| Ubuntu 16.04 LTS | 4.15.0       | amd64    | azure            |
| Ubuntu 16.04 LTS | 4.15.0       | amd64    | generic          |
| Ubuntu 16.04 LTS | 4.15.0       | amd64    | lowlatency       |

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

Mitchell Frank discovered that the Wi-Fi implementation in the Linux kernel
when used as an access point would send IAPP location updates for stations
before client authentication had completed. A physically proximate attacker
could use this to cause a denial of service. (CVE-2019-5108)

It was discovered that the Linux kernel did not properly clear data
structures on context switches for certain Intel graphics processors. A
local attacker could use this to expose sensitive information. 
(CVE-2019-14615)

It was discovered that the crypto subsystem in the Linux kernel did not
properly deallocate memory in certain error conditions. A local attacker
could use this to cause a denial of service (kernel memory exhaustion). 
(CVE-2019-19050)

It was discovered that the Datagram Congestion Control Protocol (DCCP)
implementation in the Linux kernel did not properly deallocate memory in
certain error conditions. An attacker could possibly use this to cause a
denial of service (kernel memory exhaustion). (CVE-2019-20096)

It was discovered that a race condition can lead to a use-after-free while
destroying GEM contexts in the i915 driver for the Linux kernel. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2020-7053)

Update instructions:

The problem can be corrected by updating your livepatches to the following
versions:

| Kernel                   | Version  | flavors                  |
|--------------------------+----------+--------------------------|
| 4.4.0-168.197            | 63.1     | generic, lowlatency      |
| 4.4.0-168.197~14.04.1    | 63.1     | lowlatency, generic      |
| 4.4.0-169.198            | 63.1     | generic, lowlatency      |
| 4.4.0-169.198~14.04.1    | 63.1     | lowlatency, generic      |
| 4.4.0-170.199            | 63.1     | lowlatency, generic      |
| 4.4.0-170.199~14.04.1    | 63.1     | lowlatency, generic      |
| 4.4.0-171.200            | 63.1     | lowlatency, generic      |
| 4.4.0-171.200~14.04.1    | 63.1     | generic, lowlatency      |
| 4.4.0-173.203            | 63.1     | generic, lowlatency      |
| 4.4.0-1098.109           | 63.1     | aws                      |
| 4.4.0-1099.110           | 63.1     | aws                      |
| 4.4.0-1100.111           | 63.1     | aws                      |
| 4.4.0-1101.112           | 63.1     | aws                      |
| 4.15.0-69.78             | 63.1     | generic, lowlatency      |
| 4.15.0-69.78~16.04.1     | 63.1     | lowlatency, generic      |
| 4.15.0-70.79             | 63.1     | lowlatency, generic      |
| 4.15.0-70.79~16.04.1     | 63.1     | generic, lowlatency      |
| 4.15.0-72.81             | 63.1     | generic, lowlatency      |
| 4.15.0-72.81~16.04.1     | 63.1     | generic, lowlatency      |
| 4.15.0-74.83~16.04.1     | 63.1     | lowlatency, generic      |
| 4.15.0-74.84             | 63.1     | generic, lowlatency      |
| 4.15.0-76.86             | 63.1     | generic, lowlatency      |
| 4.15.0-76.86~16.04.1     | 63.1     | lowlatency, generic      |
| 4.15.0-1054.56           | 63.1     | aws                      |
| 4.15.0-1056.58           | 63.1     | aws                      |
| 4.15.0-1057.59           | 63.1     | aws                      |
| 4.15.0-1058.60           | 63.1     | aws                      |
| 4.15.0-1063.68           | 63.1     | azure                    |
| 4.15.0-1063.72           | 63.1     | oem                      |
| 4.15.0-1064.69           | 63.1     | azure                    |
| 4.15.0-1064.73           | 63.1     | oem                      |
| 4.15.0-1065.75           | 63.1     | oem                      |
| 4.15.0-1066.71           | 63.1     | azure                    |
| 4.15.0-1066.76           | 63.1     | oem                      |
| 4.15.0-1067.72           | 63.1     | azure                    |
| 4.15.0-1067.77           | 63.1     | oem                      |
| 5.0.0-1025.26~18.04.1    | 63.1     | gcp                      |
| 5.0.0-1025.27~18.04.1    | 63.1     | azure                    |
| 5.0.0-1026.27~18.04.1    | 63.1     | gcp                      |
| 5.0.0-1027.29~18.04.1    | 63.1     | azure                    |
| 5.0.0-1028.29~18.04.1    | 63.1     | gcp                      |
| 5.0.0-1028.30~18.04.1    | 63.1     | azure                    |
| 5.0.0-1029.30~18.04.1    | 63.1     | gcp                      |
| 5.0.0-1029.31~18.04.1    | 63.1     | azure                    |

Support Information:

Kernels older than the levels listed below do not receive livepatch
updates. Please upgrade your kernel as soon as possible.

| Series           | Version          | Flavors                  |
|------------------+------------------+--------------------------|
| Ubuntu 18.04 LTS | 4.15.0-1054      | aws                      |
| Ubuntu 16.04 LTS | 4.4.0-1098       | aws                      |
| Ubuntu 18.04 LTS | 5.0.0-1025       | azure                    |
| Ubuntu 16.04 LTS | 4.15.0-1063      | azure                    |
| Ubuntu 18.04 LTS | 4.15.0-69        | generic lowlatency       |
| Ubuntu 18.04 LTS | 5.0.0-1025       | gcp                      |
| Ubuntu 16.04 LTS | 4.15.0-69        | generic lowlatency       |
| Ubuntu 14.04 LTS | 4.4.0-168        | generic lowlatency       |
| Ubuntu 18.04 LTS | 4.15.0-1063      | oem                      |
| Ubuntu 16.04 LTS | 4.4.0-168        | generic lowlatency       |

References:
  CVE-2019-5108, CVE-2019-14615, CVE-2019-19050, CVE-2019-20096, 
  CVE-2020-7053


-- 
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce

Ubuntu 0063-1: Linux kernel vulnerability

February 19, 2020
Several security issues were fixed in the kernel.

Summary

Update Instructions

The problem can be corrected by updating your livepatches to the following versions: | Kernel | Version | flavors | |--------------------------+----------+--------------------------| | 4.4.0-168.197 | 63.1 | generic, lowlatency | | 4.4.0-168.197~14.04.1 | 63.1 | lowlatency, generic | | 4.4.0-169.198 | 63.1 | generic, lowlatency | | 4.4.0-169.198~14.04.1 | 63.1 | lowlatency, generic | | 4.4.0-170.199 | 63.1 | lowlatency, generic | | 4.4.0-170.199~14.04.1 | 63.1 | lowlatency, generic | | 4.4.0-171.200 | 63.1 | lowlatency, generic | | 4.4.0-171.200~14.04.1 | 63.1 | generic, lowlatency | | 4.4.0-173.203 | 63.1 | generic, lowlatency | | 4.4.0-1098.109 | 63.1 | aws | | 4.4.0-1099.110 | 63.1 | aws | | 4.4.0-1100.111 | 63.1 | aws | | 4.4.0-1101.112 | 63.1 | aws | | 4.15.0-69.78 | 63.1 | generic, lowlatency | | 4.15.0-69.78~16.04.1 | 63.1 | lowlatency, generic | | 4.15.0-70.79 | 63.1 | lowlatency, generic | | 4.15.0-70.79~16.04.1 | 63.1 | generic, lowlatency | | 4.15.0-72.81 | 63.1 | generic, lowlatency | | 4.15.0-72.81~16.04.1 | 63.1 | generic, lowlatency | | 4.15.0-74.83~16.04.1 | 63.1 | lowlatency, generic | | 4.15.0-74.84 | 63.1 | generic, lowlatency | | 4.15.0-76.86 | 63.1 | generic, lowlatency | | 4.15.0-76.86~16.04.1 | 63.1 | lowlatency, generic | | 4.15.0-1054.56 | 63.1 | aws | | 4.15.0-1056.58 | 63.1 | aws | | 4.15.0-1057.59 | 63.1 | aws | | 4.15.0-1058.60 | 63.1 | aws | | 4.15.0-1063.68 | 63.1 | azure | | 4.15.0-1063.72 | 63.1 | oem | | 4.15.0-1064.69 | 63.1 | azure | | 4.15.0-1064.73 | 63.1 | oem | | 4.15.0-1065.75 | 63.1 | oem | | 4.15.0-1066.71 | 63.1 | azure | | 4.15.0-1066.76 | 63.1 | oem | | 4.15.0-1067.72 | 63.1 | azure | | 4.15.0-1067.77 | 63.1 | oem | | 5.0.0-1025.26~18.04.1 | 63.1 | gcp | | 5.0.0-1025.27~18.04.1 | 63.1 | azure | | 5.0.0-1026.27~18.04.1 | 63.1 | gcp | | 5.0.0-1027.29~18.04.1 | 63.1 | azure | | 5.0.0-1028.29~18.04.1 | 63.1 | gcp | | 5.0.0-1028.30~18.04.1 | 63.1 | azure | | 5.0.0-1029.30~18.04.1 | 63.1 | gcp | | 5.0.0-1029.31~18.04.1 | 63.1 | azure | Support Information: Kernels older than the levels listed below do not receive livepatch updates. Please upgrade your kernel as soon as possible. | Series | Version | Flavors | |------------------+------------------+--------------------------| | Ubuntu 18.04 LTS | 4.15.0-1054 | aws | | Ubuntu 16.04 LTS | 4.4.0-1098 | aws | | Ubuntu 18.04 LTS | 5.0.0-1025 | azure | | Ubuntu 16.04 LTS | 4.15.0-1063 | azure | | Ubuntu 18.04 LTS | 4.15.0-69 | generic lowlatency | | Ubuntu 18.04 LTS | 5.0.0-1025 | gcp | | Ubuntu 16.04 LTS | 4.15.0-69 | generic lowlatency | | Ubuntu 14.04 LTS | 4.4.0-168 | generic lowlatency | | Ubuntu 18.04 LTS | 4.15.0-1063 | oem | | Ubuntu 16.04 LTS | 4.4.0-168 | generic lowlatency |

References

CVE-2019-5108, CVE-2019-14615, CVE-2019-19050, CVE-2019-20096,

CVE-2020-7053

--

ubuntu-security-announce mailing list

ubuntu-security-announce@lists.ubuntu.com

Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce

Severity
February 19, 2020

Package Information

Related News

23.Tablet Connections Esm H320
2 - 3 min read
The release of Ubuntu 24.04 LTS , also known as Noble Numbat, brings various security enhancements and exciting new features . These improvements
4.Lock AbstractDigital Esm H320
2 - 3 min read
Tails 6.2 is a new Linux distribution release that expands its multilingual support and improves security features. The distribution is a
19.Laptop Bed Esm H320
2 - 3 min read
AlmaLinux 9.4 beta has been released and provides compelling reasons to consider it for desktop usage. While AlmaLinux is primarily known as a
32.Lock Code Circular Esm H320
2 - 3 min read
Linux admins and security practitioners face significant challenges in keeping their Linux systems secure amidst the constant threat of kernel bugs.
1.Penguin Landscape Esm H320
2 - 3 min read
A significant security threat, known as the Spectre v2 exploit, has been observed targeting Linux systems running on modern Intel processors. Let's
10.FingerPrint Locks Esm H320
2 - 3 min read
The recent release of I2P 2.5.0 , an anonymous P2P network that protects against online censorship, surveillance, and monitoring, has brought a slew
24.Key Code Esm H320
2 - 3 min read
The Akira ransomware group has extorted approximately $42 million from over 250 victims since January 1, 2024. The group initially focused on
5.ShakingHands Esm H320
2 - 3 min read
At The Linux Foundation's Open Source Summit North America , Linus Torvalds, the creator of Linux, discussed various topics related to Linux
Sign Up

Get the Latest News & Insights

Sign up to get the latest security news affecting Linux and open source delivered straight to your inbox.

© 2024 Guardian Digital, Inc All Rights Reserved