The lxcDomainGetMemoryParameters method in lxc/lxc_driver.c in libvirt 1.0.5 through…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
The lxcDomainGetMemoryParameters method in lxc/lxc_driver.c in libvirt 1.0.5 through 1.2.0 does not properly check the status of LXC guests when reading memory tunables, which allows local users to cause a denial of service (NULL pointer dereference and libvirtd crash) via a guest in the shutdown status, as demonstrated by the "virsh memtune" command.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:libvirt:1.0.5:*:*:*:*:*:*:* | 1.0.5 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.0.5.1:*:*:*:*:*:*:* | 1.0.5.1 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.0.5.2:*:*:*:*:*:*:* | 1.0.5.2 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.0.5.3:*:*:*:*:*:*:* | 1.0.5.3 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.0.5.4:*:*:*:*:*:*:* | 1.0.5.4 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.0.5.5:*:*:*:*:*:*:* | 1.0.5.5 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.0.5.6:*:*:*:*:*:*:* | 1.0.5.6 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.0.6:*:*:*:*:*:*:* | 1.0.6 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.1.0:*:*:*:*:*:*:* | 1.1.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.1.1:*:*:*:*:*:*:* | 1.1.1 | Vulnerable | Red Hat |
- cpe:2.3:a:redhat:libvirt:1.0.5:*:*:*:*:*:*:* Versions 1.0.5 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.0.5.1:*:*:*:*:*:*:* Versions 1.0.5.1 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.0.5.2:*:*:*:*:*:*:* Versions 1.0.5.2 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.0.5.3:*:*:*:*:*:*:* Versions 1.0.5.3 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.0.5.4:*:*:*:*:*:*:* Versions 1.0.5.4 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.0.5.5:*:*:*:*:*:*:* Versions 1.0.5.5 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.0.5.6:*:*:*:*:*:*:* Versions 1.0.5.6 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.0.6:*:*:*:*:*:*:* Versions 1.0.6 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.1.0:*:*:*:*:*:*:* Versions 1.1.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.1.1:*:*:*:*:*:*:* Versions 1.1.1 Vulnerable ·Red Hat
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:libvirt:1.1.2:*:*:*:*:*:*:* | 1.1.2 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.1.3:*:*:*:*:*:*:* | 1.1.3 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.1.4:*:*:*:*:*:*:* | 1.1.4 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:libvirt:1.2.0:*:*:*:*:*:*:* | 1.2.0 | Vulnerable | Red Hat |
- cpe:2.3:a:redhat:libvirt:1.1.2:*:*:*:*:*:*:* Versions 1.1.2 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.1.3:*:*:*:*:*:*:* Versions 1.1.3 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.1.4:*:*:*:*:*:*:* Versions 1.1.4 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:libvirt:1.2.0:*:*:*:*:*:*:* Versions 1.2.0 Vulnerable ·Red Hat
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2013-6436
- 2026-10-03 Alias added: GHSA-3r95-9fm6-xqcf
References
More Red Hat Libvirt vulnerabilities
- TI-2016-04328 libvirt before 2.0.0 improperly disables password checking when the password on a VNC… CVSS 3.0CRITICAL 9.8
- TI-2019-07455 Incorrect permission assignment in libvirt CVSS 3.0HIGH 8.8
- TI-2013-03857 The virConnectDomainXMLToNative API function in libvirt 1.1.0 through 1.1.3 checks for… CVSS 2.0HIGH 8.5
- TI-2018-04154 qemu/qemu_monitor.c in libvirt allows attackers to cause a denial of service (memory… CVSS 3.0HIGH 7.5
- TI-2017-14571 libvirt version 2.3.0 and later is vulnerable to a bad default configuration of… CVSS 3.1HIGH 8.1
- TI-2013-00105 Use-after-free vulnerability in the virNetMessageFree function in… CVSS 2.0MEDIUM 6.8
Sources
- CVE-2013-6436 · CVE Program
- CVE-2013-6436 · NVD
- FIRST EPSS
- GHSA-3r95-9fm6-xqcf · GitHub Advisory Database · CC BY 4.0
- CVE-2013-6436 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences