CVE-2020-10703: libvirt NULL Pointer Dereference
Vulnerability summary
CVE-2020-10703 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in libvirt. EPSS estimates a 2.38% chance of exploitation in the next 30 days, higher than 83.9% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 3Timeline
- 02-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affects storage pools created without a target path such as network-based pools like gluster and RBD. Unprivileged users with a read-only connection could abuse this flaw to crash the libvirt daemon, resulting in a potential denial of service.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.38%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.38% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundExploit Reference (bugzilla.redhat.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Suse7 products
- libvirt&distro=SUSE Linux Enterprise High Performance Computing 15-ESPOS< 4.0.0-9.32.1
- libvirt&distro=SUSE Linux Enterprise High Performance Computing 15-LTSS< 4.0.0-9.32.1
- libvirt&distro=SUSE Linux Enterprise Server 12 SP4< 4.0.0-8.20.2
- libvirt&distro=SUSE Linux Enterprise Server 15-LTSS< 4.0.0-9.32.1
- libvirt&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP4< 4.0.0-8.20.2
Debian1 product
- libvirt< 6.0.0-2
Libvirt1 product
- libvirt≥ 3.10.0, < 6.0.0
Redhat1 product
- libvirt≥ 3.10.0, < 6.0.0
Ubuntu1 product
- libvirt< 4.0.0-1ubuntu8.17
5 vendors · 11 products
References
22 links- lists.fedoraproject.org/archives/…Vendor Advisory