An update of the libvirt package has been released.

An update for libvirt is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems.
In addition, libvirt provides tools for remote management of virtualized systems.

Security Fix(es) :

* libvirt: NULL pointer dereference after running qemuAgentCommand in qemuAgentGetInterfaces function (CVE-2019-3840)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

According to the versions of the libvirt packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - libvirt: arbitrary file read/exec via     virDomainSaveImageGetXMLDesc API (CVE-2019-10161)

  - libvirt: arbitrary command execution via     virConnectGetDomainCapabilities API (CVE-2019-10167)

  - libvirt: NULL pointer dereference after running     qemuAgentCommand in qemuAgentGetInterfaces     function(CVE-2019-3840)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for libvirt provides the following fixes :

Security issue fixed :

  - CVE-2019-3840: Fixed a NULL pointer dereference     vulnerability in virJSONValueObjectHasKey function which     could have resulted in a remote denial of service via     the guest agent (bsc#1127458). 

Other issues addressed :

  - apparmor: reintroduce upstream lxc mount rules     (bsc#1130129).

  - hook: encode incoming XML to UTF-8 before passing to     lxml etree from string method (bsc#1123642).

  - supportconfig: collect rotated logs in     /var/log/libvirt/* (bsc#1124667).

  - libxl: support Xen's max_grant_frames setting with     maxGrantFrames attribute on the xenbus controller     (bsc#1126325).

  - conf: added new 'xenbus' controller type

  - util: skip RDMA detection for non-PCI network devices     (bsc#1112182).

  - qemu: don't use CAP_DAC_OVERRIDE capability if non-root     (bsc#1125665).

  - qemu: fix issues related to restricted permissions on     /dev/sev(bsc#1102604).

  - apparmor: add support for named profiles (bsc#1118952).

  - libxl: save current memory value after successful     balloon (bsc#1120813).

  - apparmor: Fix ptrace rules. (bsc#1117058)

  - libxl: Add support for soft reset. (bsc#1081516)

  - libxl: Fix VM migration on busy hosts. (bsc#1108086)

  - qemu: Add support for SEV guests. (fate#325817)

  - util: Don't check for parallel iteration in hash-related     functions. (bsc#1106420)

  - spec: Don't restart libvirt-guests when updating     libvirt-client. (bsc#1104662)

  - Fix virNodeGetSEVInfo API crashing libvirtd on AMD SEV     enabled hosts. (bsc#1108395)

This update was imported from the SUSE:SLE-15:Update update project.

This update for libvirt fixes the following issues :

Security issues fixed :

  - CVE-2019-3840: Fixed a NULL pointer dereference     vulnerability in virJSONValueObjectHasKey function which     could have resulted in a remote denial of service via     the guest agent (bsc#1127458). 

  - CVE-2019-3886: Fixed an information leak which allowed     to retrieve the guest hostname under readonly mode     (bsc#1131595).

Other issue addressed :

  - cpu: add Skylake-Server and Skylake-Server-IBRS CPU     models (FATE#327261, bsc#1131955)

  - libxl: save current memory value after successful     balloon (bsc#1120813).

  - libxl: support Xen's max_grant_frames setting with     maxGrantFrames attribute on the xenbus controller     (bsc#1126325).

  - conf: add new 'xenbus' controller type

This update was imported from the SUSE:SLE-12-SP3:Update update project.

This update for libvirt fixes the following issues :

Security issues fixed :

CVE-2019-3840: Fixed a NULL pointer dereference vulnerability in virJSONValueObjectHasKey function which could have resulted in a remote denial of service via the guest agent (bsc#1127458).

Other issues fixed: libxl: save current memory value after successful balloon (bsc#1120813).

spec: Don't restart libvirt-guests when updating libvirt-client (bsc#1104662).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
202769	Photon OS 3.0: Libvirt PHSA-2019-3.0-0016	Nessus	PhotonOS Local Security Checks	2024/7/22	2025/2/19	medium
202875	Photon OS 2.0: Libvirt PHSA-2019-2.0-0161	Nessus	PhotonOS Local Security Checks	2024/7/22	2025/2/19	medium
128386	CentOS 7 : libvirt (CESA-2019:2294)	Nessus	CentOS Local Security Checks	2019/8/30	2025/2/24	medium
126852	EulerOS 2.0 SP2 : libvirt (EulerOS-SA-2019-1724)	Nessus	Huawei Local Security Checks	2019/7/22	2024/5/9	high
124359	openSUSE Security Update : libvirt (openSUSE-2019-1288)	Nessus	SuSE Local Security Checks	2019/4/29	2025/3/11	medium
124402	openSUSE Security Update : libvirt (openSUSE-2019-1294)	Nessus	SuSE Local Security Checks	2019/4/30	2024/5/30	medium
123780	SUSE SLES12 Security Update : libvirt (SUSE-SU-2019:0553-1)	Nessus	SuSE Local Security Checks	2019/4/5	2025/3/12	medium

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