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amazonAmazonALAS2-2018-1134
HistoryDec 18, 2018 - 7:07 p.m.

Medium: libvirt

2018-12-1819:07:00
alas.aws.amazon.com
9

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 High

AI Score

Confidence

High

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

0.001 Low

EPSS

Percentile

24.0%

JSON

Issue Overview:

util/virlog.c in libvirt does not properly determine the hostname on LXC container startup, which allows local guest OS users to bypass an intended container protection mechanism and execute arbitrary commands via a crafted NSS module.(CVE-2018-6764)

Affected Packages:

libvirt

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update libvirt to update your system.

New Packages:

aarch64:  
    libvirt-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-docs-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-config-network-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-config-nwfilter-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-network-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-nwfilter-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-nodedev-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-interface-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-secret-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-storage-core-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-storage-logical-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-storage-disk-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-storage-scsi-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-storage-iscsi-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-storage-mpath-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-storage-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-driver-lxc-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-daemon-lxc-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-client-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-libs-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-admin-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-bash-completion-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-login-shell-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-devel-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-nss-4.5.0-10.amzn2.3.1.aarch64  
    libvirt-debuginfo-4.5.0-10.amzn2.3.1.aarch64  
  
i686:  
    libvirt-4.5.0-10.amzn2.3.1.i686  
    libvirt-docs-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-config-network-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-config-nwfilter-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-network-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-nwfilter-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-nodedev-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-interface-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-secret-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-storage-core-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-storage-logical-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-storage-disk-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-storage-scsi-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-storage-iscsi-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-storage-mpath-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-storage-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-driver-lxc-4.5.0-10.amzn2.3.1.i686  
    libvirt-daemon-lxc-4.5.0-10.amzn2.3.1.i686  
    libvirt-client-4.5.0-10.amzn2.3.1.i686  
    libvirt-libs-4.5.0-10.amzn2.3.1.i686  
    libvirt-admin-4.5.0-10.amzn2.3.1.i686  
    libvirt-bash-completion-4.5.0-10.amzn2.3.1.i686  
    libvirt-login-shell-4.5.0-10.amzn2.3.1.i686  
    libvirt-devel-4.5.0-10.amzn2.3.1.i686  
    libvirt-nss-4.5.0-10.amzn2.3.1.i686  
    libvirt-debuginfo-4.5.0-10.amzn2.3.1.i686  
  
src:  
    libvirt-4.5.0-10.amzn2.3.1.src  
  
x86_64:  
    libvirt-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-docs-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-config-network-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-config-nwfilter-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-network-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-nwfilter-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-nodedev-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-interface-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-secret-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-storage-core-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-storage-logical-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-storage-disk-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-storage-scsi-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-storage-iscsi-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-storage-mpath-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-storage-gluster-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-storage-rbd-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-storage-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-qemu-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-driver-lxc-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-kvm-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-daemon-lxc-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-client-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-libs-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-admin-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-bash-completion-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-login-shell-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-devel-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-lock-sanlock-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-nss-4.5.0-10.amzn2.3.1.x86_64  
    libvirt-debuginfo-4.5.0-10.amzn2.3.1.x86_64

Additional References

Red Hat: CVE-2018-6764

Mitre: CVE-2018-6764

OSVersionArchitecturePackageVersionFilename
Amazon Linux2aarch64libvirt< 4.5.0-10.amzn2.3.1libvirt-4.5.0-10.amzn2.3.1.aarch64.rpm
Amazon Linux2aarch64libvirt-docs< 4.5.0-10.amzn2.3.1libvirt-docs-4.5.0-10.amzn2.3.1.aarch64.rpm
Amazon Linux2aarch64libvirt-daemon< 4.5.0-10.amzn2.3.1libvirt-daemon-4.5.0-10.amzn2.3.1.aarch64.rpm
Amazon Linux2aarch64libvirt-daemon-config-network< 4.5.0-10.amzn2.3.1libvirt-daemon-config-network-4.5.0-10.amzn2.3.1.aarch64.rpm
Amazon Linux2aarch64libvirt-daemon-config-nwfilter< 4.5.0-10.amzn2.3.1libvirt-daemon-config-nwfilter-4.5.0-10.amzn2.3.1.aarch64.rpm
Amazon Linux2aarch64libvirt-daemon-driver-network< 4.5.0-10.amzn2.3.1libvirt-daemon-driver-network-4.5.0-10.amzn2.3.1.aarch64.rpm
Amazon Linux2aarch64libvirt-daemon-driver-nwfilter< 4.5.0-10.amzn2.3.1libvirt-daemon-driver-nwfilter-4.5.0-10.amzn2.3.1.aarch64.rpm
Amazon Linux2aarch64libvirt-daemon-driver-nodedev< 4.5.0-10.amzn2.3.1libvirt-daemon-driver-nodedev-4.5.0-10.amzn2.3.1.aarch64.rpm
Amazon Linux2aarch64libvirt-daemon-driver-interface< 4.5.0-10.amzn2.3.1libvirt-daemon-driver-interface-4.5.0-10.amzn2.3.1.aarch64.rpm
Amazon Linux2aarch64libvirt-daemon-driver-secret< 4.5.0-10.amzn2.3.1libvirt-daemon-driver-secret-4.5.0-10.amzn2.3.1.aarch64.rpm
Rows per page:
1-10 of 861

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7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 High

AI Score

Confidence

High

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

0.001 Low

EPSS

Percentile

24.0%

JSON
Related for ALAS2-2018-1134
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