CVE-2021-3516

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1954225

https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539

https://gitlab.gnome.org/GNOME/libxml2/-/issues/230

https://lists.fedoraproject.org/archives/list/[email protected]/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/

https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/

https://security.gentoo.org/glsa/202107-05

https://security.netapp.com/advisory/ntap-20210716-0005/

Details

Source: MITRE

Published: 2021-06-01

Updated: 2021-09-14

Type: CWE-416

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (21 total)

IDNameProductFamilySeverity
156511EulerOS Virtualization 3.0.2.6 : libxml2 (EulerOS-SA-2021-2884)NessusHuawei Local Security Checks
high
156374EulerOS Virtualization 3.0.2.0 : libxml2 (EulerOS-SA-2021-2833)NessusHuawei Local Security Checks
high
154396EulerOS 2.0 SP3 : libxml2 (EulerOS-SA-2021-2595)NessusHuawei Local Security Checks
high
153719EulerOS 2.0 SP5 : libxml2 (EulerOS-SA-2021-2508)NessusHuawei Local Security Checks
high
153349EulerOS 2.0 SP2 : libxml2 (EulerOS-SA-2021-2406)NessusHuawei Local Security Checks
high
152408EulerOS 2.0 SP8 : libxml2 (EulerOS-SA-2021-2306)NessusHuawei Local Security Checks
high
152294EulerOS 2.0 SP9 : libxml2 (EulerOS-SA-2021-2249)NessusHuawei Local Security Checks
high
152286EulerOS 2.0 SP9 : libxml2 (EulerOS-SA-2021-2275)NessusHuawei Local Security Checks
high
151363CentOS 8 : libxml2 (CESA-2021:2569)NessusCentOS Local Security Checks
high
151359Oracle Linux 8 : libxml2 (ELSA-2021-2569)NessusOracle Linux Local Security Checks
high
151267Amazon Linux 2 : libxml2 (ALAS-2021-1677)NessusAmazon Linux Local Security Checks
high
151142RHEL 8 : libxml2 (RHSA-2021:2569)NessusRed Hat Local Security Checks
high
150858Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 / 21.04 : libxml2 vulnerabilities (USN-4991-1)NessusUbuntu Local Security Checks
high
150579SUSE SLES11 Security Update : libxml2 (SUSE-SU-2021:14729-1)NessusSuSE Local Security Checks
high
149895openSUSE Security Update : libxml2 (openSUSE-2021-764)NessusSuSE Local Security Checks
high
149807SUSE SLES12 Security Update : libxml2 (SUSE-SU-2021:1658-1)NessusSuSE Local Security Checks
high
149796SUSE SLED15 / SLES15 Security Update : libxml2 (SUSE-SU-2021:1654-1)NessusSuSE Local Security Checks
high
149571openSUSE Security Update : libxml2 (openSUSE-2021-692)NessusSuSE Local Security Checks
high
149372Debian DLA-2653-1 : libxml2 security updateNessusDebian Local Security Checks
high
149347SUSE SLED15 / SLES15 Security Update : libxml2 (SUSE-SU-2021:1523-1)NessusSuSE Local Security Checks
high
149340SUSE SLES12 Security Update : libxml2 (SUSE-SU-2021:1524-1)NessusSuSE Local Security Checks
high