Use After Free in NetApp Clustered Data Ontap
CVE-2021-3516
There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: +0.001
Affected products
- NetApp Clustered Data Ontap
- NetApp Clustered Data Ontap Antivirus Connector
- NetApp Ontap Select Deploy Administration Utility
- Oracle Zfs Storage Appliance Kit — versions 8.8
- Xmlsoft Xmllint
- Debian Linux — versions 9.0
- Fedoraproject Fedora — versions 33, 34
- Red Hat Enterprise Linux — versions 6.0, 7.0, 8.0
- Red Hat Jboss Core Services
- Libxml2 — versions libxml2 2.9.11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2021/05/msg00008.html (mailing-list, Mailing List, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202107-05 (vendor-advisory, Third Party Advisory)
- www.oracle.com/security-alerts/cpujan2022.html (Patch, Third Party Advisory)
- gitlab.gnome.org/GNOME/libxml2/-/issues/230 (Exploit, Third Party Advisory, Issue Tracking)
- gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539 (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20210716-0005/ (Third Party Advisory)
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2021-3516?
- CVE-2021-3516 is a high-severity vulnerability in NetApp Clustered Data Ontap, classified under Use After Free. CVSS score: 7.8/10. Published 2021-06-01.
- How severe is CVE-2021-3516?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-3516 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.