Ubuntu 0062-1: Linux kernel vulnerability

    Date 03 Feb 2020
    404
    Posted By LinuxSecurity Advisories
    Several security issues were fixed in the kernel.
    ==========================================================================
    Kernel Live Patch Security Notice 0062-1
    February 03, 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       |
    
    Summary:
    
    Several security issues were fixed in the kernel.
    
    Software Description:
    - linux: Linux kernel
    
    Details:
    
    It was discovered that the binder IPC implementation in the Linux kernel
    did not properly perform bounds checking in some situations, leading to an
    out-of-bounds write. A local attacker could use this to cause a denial of
    service (system crash) or possibly execute arbitrary code. (CVE-2019-2214)
    
    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 a heap-based buffer overflow existed in the Marvell
    WiFi-Ex Driver for the Linux kernel. A physically proximate attacker could
    use this to cause a denial of service (system crash) or possibly execute
    arbitrary code. (CVE-2019-14895)
    
    It was discovered that a heap-based buffer overflow existed in the Marvell
    Libertas WLAN Driver for the Linux kernel. A physically proximate attacker
    could use this to cause a denial of service (system crash) or possibly
    execute arbitrary code. (CVE-2019-14896)
    
    It was discovered that a heap-based buffer overflow existed in the Marvell
    Libertas WLAN Driver for the Linux kernel. A physically proximate attacker
    could use this to cause a denial of service (system crash) or possibly
    execute arbitrary code. (CVE-2019-14897)
    
    It was discovered that a heap-based buffer overflow existed in the Marvell
    WiFi-Ex Driver for the Linux kernel. A physically proximate attacker could
    use this to cause a denial of service (system crash) or possibly execute
    arbitrary code. (CVE-2019-14901)
    
    It was discovered that the btrfs file system in the Linux kernel did not
    properly validate metadata, leading to a NULL pointer dereference. An
    attacker could use this to specially craft a file system image that, when
    mounted, could cause a denial of service (system crash). (CVE-2019-18885)
    
    Update instructions:
    
    The problem can be corrected by updating your livepatches to the following
    versions:
    
    | Kernel                   | Version  | flavors                  |
    |--------------------------+----------+--------------------------|
    | 4.4.0-168.197            | 62.2     | generic, lowlatency      |
    | 4.4.0-168.197~14.04.1    | 62.2     | lowlatency, generic      |
    | 4.4.0-169.198            | 62.2     | generic, lowlatency      |
    | 4.4.0-169.198~14.04.1    | 62.2     | lowlatency, generic      |
    | 4.4.0-170.199            | 62.2     | lowlatency, generic      |
    | 4.4.0-170.199~14.04.1    | 62.2     | lowlatency, generic      |
    | 4.4.0-171.200            | 62.2     | lowlatency, generic      |
    | 4.4.0-1098.109           | 62.2     | aws                      |
    | 4.4.0-1099.110           | 62.2     | aws                      |
    | 4.4.0-1100.111           | 62.2     | aws                      |
    | 4.15.0-69.78             | 62.2     | generic, lowlatency      |
    | 4.15.0-70.79             | 62.2     | lowlatency, generic      |
    | 4.15.0-72.81             | 62.2     | generic, lowlatency      |
    | 4.15.0-74.84             | 62.2     | generic, lowlatency      |
    | 4.15.0-1054.56           | 62.2     | aws                      |
    | 4.15.0-1056.58           | 62.2     | aws                      |
    | 4.15.0-1057.59           | 62.2     | aws                      |
    | 4.15.0-1063.72           | 62.2     | oem                      |
    | 4.15.0-1064.73           | 62.2     | oem                      |
    | 4.15.0-1065.75           | 62.2     | oem                      |
    | 4.15.0-1066.76           | 62.2     | oem                      |
    | 5.0.0-1025.26~18.04.1    | 62.2     | gcp                      |
    | 5.0.0-1025.27~18.04.1    | 62.2     | azure                    |
    | 5.0.0-1026.27~18.04.1    | 62.2     | gcp                      |
    
    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-2019-2214, CVE-2019-14615, CVE-2019-14895, CVE-2019-14896, 
      CVE-2019-14897, CVE-2019-14901, CVE-2019-18885
    
    
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    [{"id":"112","title":"I strongly support this change - racially charged language should not be used in the code and documentation of the kernel and other open-source projects.","votes":"3","type":"x","order":"1","pct":42.86,"resources":[]},{"id":"113","title":"I'm indifferent - this small change will not affect broader issues of racial insensitivity and white privilege.","votes":"2","type":"x","order":"2","pct":28.57,"resources":[]},{"id":"114","title":"I'm opposed to this change - there is no need to change language that has been used for years. It doesn't make sense for people to take offense to terminology used in community projects.","votes":"2","type":"x","order":"3","pct":28.57,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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