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Red Hat: RHSA-2021:2538-01 Important: Libguestfs Security Flaw

red hat
Calendar Grey November 3, 2016
Scroller Redhat
A new update has been released for Red Hat Enterprise Linux that resolves security vulnerabilities associated with libguestfs and virt-p2v, classified with a moderate severity rating.
An update for libguestfs and virt-p2v is now available for Red Hat Enterprise Linux 7

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

The libguestfs packages contain a library, which is used for accessing and modifying virtual machine (VM) disk images.
Virt-p2v is a tool for conversion of a physical server to a virtual guest.
The following packages have been upgraded to a newer upstream version: libguestfs (1.32.7), virt-p2v (1.32.7). (BZ#1218766)
Security Fix(es):
* An integer conversion flaw was found in the way OCaml's String handled its length. Certain operations on an excessively long String could trigger a buffer overflow or result in an information leak. (CVE-2015-8869)
Note: The libguestfs packages in this advisory were rebuilt with a fixed version of OCaml to address this issue.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate buffer overflow red hat libguestfs virt-p2v

References

https://access.redhat.com/security/cve/CVE-2015-8869 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/7.3_Release_Notes/index.html

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: libguestfs-1.32.7-3.el7.src.rpm
noarch: libguestfs-inspect-icons-1.32.7-3.el7.noarch.rpm libguestfs-tools-1.32.7-3.el7.noarch.rpm
x86_64: libguestfs-1.32.7-3.el7.x86_64.rpm libguestfs-debuginfo-1.32.7-3.el7.x86_64.rpm libguestfs-java-1.32.7-3.el7.x86_64.rpm libguestfs-tools-c-1.32.7-3.el7.x86_64.rpm libguestfs-xfs-1.32.7-3.el7.x86_64.rpm perl-Sys-Guestfs-1.32.7-3.el7.x86_64.rpm python-libguestfs-1.32.7-3.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
noarch: libguestfs-bash-completion-1.32.7-3.el7.noarch.rpm libguestfs-gobject-doc-1.32.7-3.el7.noarch.rpm libguestfs-javadoc-1.32.7-3.el7.noarch.rpm libguestfs-man-pages-ja-1.32.7-3.el7.noarch.rpm libguestfs-man-pages-uk-1.32.7-3.el7.noarch.rpm
x86_64: libguestfs-debuginfo-1.32.7-3.el7.x86_64.rpm libguestfs-devel-1.32.7-3.el7.x86_64.rpm libguestfs-gfs2-1.32.7-3.el7.x86_64.rpm libguestfs-gobject-1.32.7-3.el7.x86_64.rpm libguestfs-gobject-devel-1.32.7-3.el7.x86_64.rpm libguestfs-java-devel-1.32.7-3.el7.x86_64.rpm libguestfs-rescue-1.32.7-3.el7.x86_64.rpm libguestfs-rsync-1.32.7-3.el7.x86_64.rpm lua-guestfs-1.32.7-3.el7.x86_64.rpm ocaml-libguestfs-1.32.7-3.el7.x86_64.rpm ocaml-libguestfs-devel-1.32.7-3.el7.x86_64.rpm ruby-libguestfs-1.32.7-3.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:2576-02
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2016:2576.html
Issue date: 2016-11-03

Topic

An update for libguestfs and virt-p2v is now available for Red HatEnterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate buffer overflow red hat libguestfs virt-p2v

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64

Bugs Fixed

855058 - RFE: virt-p2v: display more information about storage devices

1064041 - virt-sparsify fails if a btrfs filesystem contains readonly snapshots

1099976 - virt-builder gives GPG warning message with gnupg2

1156298 - Remove files in package libguestfs-bash-completion, these files are bash completion files, some of the virt tool completion are already implement in another file, so can remove its completion file

1164708 - set-label can only set <=127 bytes for btrfs and <=126 bytes for ntfs filesystem which not meet the help message. Also for ntfs it should give a warning message when the length >128 bytes

1166057 - btrfs filesystem will not work well if you create the filesystem with multiple disks at the same time, such as: mkfs-btrfs "/dev/sda1 /dev/sdb1"

1167916 - P2V: invalid conversion server prints unexpected end of file waiting for password prompt.

1173695 - RFE: allow passing in a pre-opened libvirt connection from python

1174551 - "lstatnslist" and "lstatlist" don't give an error if the API is used wrongly

1176801 - File /etc/sysconfig/kernel isn't updated when convert XenPV guest with regular kernel installed

1180769 - Security context on image file gets reset

1190669 - Support virt-v2v conversion of Windows > 7

1213324 - virt-v2v: warning: unknown guest operating system: windows windows 6.3 when converting win8,win8.1,win2012,win2012R2,win10 to rhev

Read the Full Advisory

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