CVE-2012-4423
published 2012-11-19CVE-2012-4423: The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and…
PriorityP422medium5CVSS 2.0
AVNACLAuNCNINAP
EPSS
3.72%
88.6th percentile
The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.
Affected
76 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | libvirt | < libvirt 0.9.12-5 (bookworm) | libvirt 0.9.12-5 (bookworm) |
| redhat | libvirt | <= 0.10.1 | — |
| redhat | libvirt | — | — |
| redhat | libvirt | — | — |
| redhat | libvirt | — | — |
| redhat | libvirt | — | — |
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| redhat | libvirt | — | — |
| redhat | libvirt | — | — |
| redhat | libvirt | — | — |
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| redhat | libvirt | — | — |
| redhat | libvirt | — | — |
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CVSS provenance
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv5.0MEDIUM
vendor_debian5.0MEDIUM
vendor_redhat5.0MEDIUM
vendor_ubuntu5.0MEDIUM
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Ubuntu
libvirt vulnerabilities
vendor_ubuntu·2013-01-29·CVSS 5.0
CVE-2012-4423 [MEDIUM] libvirt vulnerabilities
Title: libvirt vulnerabilities
Summary: libvirt could be made to crash or run programs if it received specially
crafted network traffic.
Wenlong Huang discovered that libvirt incorrectly handled certain RPC
calls. A remote attacker could exploit this and cause libvirt to crash,
resulting in a denial of service. This issue only affected Ubuntu 12.04
LTS. (CVE-2012-4423)
Tingting Zheng discovered that libvirt incorrectly handled cleanup under
certain error conditions. A remote attacker could exploit this and cause
libvirt to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2013-0170)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
Red Hat
libvirt: null function pointer invocation in virNetServerProgramDispatchCall()
vendor_redhat·2012-07-24·CVSS 5.0
CVE-2012-4423 [MEDIUM] libvirt: null function pointer invocation in virNetServerProgramDispatchCall()
libvirt: null function pointer invocation in virNetServerProgramDispatchCall()
The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.
Statement: The versions of libvirt as shipped with Red Hat Enterprise Linux 5 are not affected.
This issue did affect the versions of the libvirt package as shipped with Red Hat Enterprise Linux 6.
Package: libvirt (Red Hat Enterprise Linux 5) - Not affected
Debian
CVE-2012-4423: libvirt - The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows rem...
vendor_debian·2012·CVSS 5.0
CVE-2012-4423 [MEDIUM] CVE-2012-4423: libvirt - The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows rem...
The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.
Scope: local
bookworm: resolved (fixed in 0.9.12-5)
bullseye: resolved (fixed in 0.9.12-5)
forky: resolved (fixed in 0.9.12-5)
sid: resolved (fixed in 0.9.12-5)
trixie: resolved (fixed in 0.9.12-5)
GHSA
GHSA-82q7-xh57-cm62: The virNetServerProgramDispatchCall function in libvirt before 0
ghsa_unreviewed·2022-05-17
CVE-2012-4423 [MEDIUM] GHSA-82q7-xh57-cm62: The virNetServerProgramDispatchCall function in libvirt before 0
The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.
OSV
CVE-2012-4423: The virNetServerProgramDispatchCall function in libvirt before 0
osv·2012-11-19·CVSS 5.0
CVE-2012-4423 [MEDIUM] CVE-2012-4423: The virNetServerProgramDispatchCall function in libvirt before 0
The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2012-4423 libvirt: null function pointer invocation in virNetServerProgramDispatchCall() [fedora-all]
bugzilla·2012-09-13·CVSS 5.0
CVE-2012-4423 [MEDIUM] CVE-2012-4423 libvirt: null function pointer invocation in virNetServerProgramDispatchCall() [fedora-all]
CVE-2012-4423 libvirt: null function pointer invocation in virNetServerProgramDispatchCall() [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected Fedora
versions.
For comments that are specific to the vulnerability please use bugs filed
against "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When creating a Bodhi update request, please include this bug ID and the
bug IDs of this bug's parent bugs filed against the "Security Response"
product (the top-level CVE bugs). Please mention the CVE IDs being fixed
in the RPM changelog when available.
Bodhi update submission link:
https://admin.fedoraproject.o
Bugzilla
CVE-2012-4423 libvirt: null function pointer invocation in virNetServerProgramDispatchCall()
bugzilla·2012-09-13·CVSS 5.0
CVE-2012-4423 [MEDIUM] CVE-2012-4423 libvirt: null function pointer invocation in virNetServerProgramDispatchCall()
CVE-2012-4423 libvirt: null function pointer invocation in virNetServerProgramDispatchCall()
It has been found that sending RPC message with an event as the RPC number, or RPC number that falls into gap in the RPC dispatch table, can lead to libvirtd accessing memory at page zero. A remote attacker could use this flaw to crash libvirtd (DoS).
Proposed upstream fix:
https://www.redhat.com/archives/libvir-list/2012-September/msg00843.html
Discussion:
Statement:
The versions of libvirt as shipped with Red Hat Enterprise Linux 5 are not affected.
This issue did affect the versions of the libvirt package as shipped with Red Hat Enterprise Linux 6.
---
Created libvirt tracking bugs for this issue
Affects: fedora-all [bug 857135]
---
Acknowledgements:
This issue was discovered by Wenl
http://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=b7ff9e696063189a715802d081d55a398663c15ahttp://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=f8fbeb50d52520a109d71c8566fed2ea600650echttp://lists.fedoraproject.org/pipermail/package-announce/2012-October/089976.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2012-October/090121.htmlhttp://lists.opensuse.org/opensuse-security-announce/2013-02/msg00001.htmlhttp://rhn.redhat.com/errata/RHSA-2012-1359.htmlhttp://www.openwall.com/lists/oss-security/2012/09/13/14http://www.securityfocus.com/bid/55541http://www.securitytracker.com/id?1027649http://www.ubuntu.com/usn/USN-1708-1https://bugzilla.redhat.com/show_bug.cgi?id=857133https://www.redhat.com/archives/libvir-list/2012-September/msg00843.htmlhttp://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=b7ff9e696063189a715802d081d55a398663c15ahttp://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=f8fbeb50d52520a109d71c8566fed2ea600650echttp://lists.fedoraproject.org/pipermail/package-announce/2012-October/089976.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2012-October/090121.htmlhttp://lists.opensuse.org/opensuse-security-announce/2013-02/msg00001.htmlhttp://rhn.redhat.com/errata/RHSA-2012-1359.htmlhttp://www.openwall.com/lists/oss-security/2012/09/13/14http://www.securityfocus.com/bid/55541http://www.securitytracker.com/id?1027649http://www.ubuntu.com/usn/USN-1708-1https://bugzilla.redhat.com/show_bug.cgi?id=857133https://www.redhat.com/archives/libvir-list/2012-September/msg00843.html
2012-11-19
Published