CVE Vulnerabilities

CVE-2022-23308

Use After Free

Published: Feb 26, 2022 | Modified: May 05, 2025
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
8.1 MODERATE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM

valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Name Vendor Start Version End Version
Libxml2 Xmlsoft * 2.9.13 (excluding)
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-apr-util-0:1.6.1-91.el8jbcs *
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-curl-0:7.78.0-3.el8jbcs *
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-httpd-0:2.4.37-80.el8jbcs *
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-mod_cluster-native-0:1.3.16-10.Final_redhat_2.el8jbcs *
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-mod_http2-0:1.15.7-22.el8jbcs *
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-mod_jk-0:1.2.48-29.redhat_1.el8jbcs *
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-mod_md-1:2.0.8-41.el8jbcs *
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-mod_security-0:2.9.2-68.GA.el8jbcs *
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-nghttp2-0:1.39.2-41.el8jbcs *
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-openssl-1:1.1.1g-11.el8jbcs *
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-openssl-chil-0:1.0.0-11.el8jbcs *
JBoss Core Services for RHEL 8 RedHat jbcs-httpd24-openssl-pkcs11-0:0.4.10-26.el8jbcs *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-apr-util-0:1.6.1-91.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-curl-0:7.78.0-3.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-httpd-0:2.4.37-80.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-mod_cluster-native-0:1.3.16-10.Final_redhat_2.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-mod_http2-0:1.15.7-22.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-mod_jk-0:1.2.48-29.redhat_1.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-mod_md-1:2.0.8-41.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-mod_security-0:2.9.2-68.GA.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-nghttp2-0:1.39.2-41.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-openssl-1:1.1.1g-11.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-openssl-chil-0:1.0.0-11.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-openssl-pkcs11-0:0.4.10-26.jbcs.el7 *
Red Hat Enterprise Linux 8 RedHat libxml2-0:2.9.7-12.el8_5 *
Red Hat Enterprise Linux 8 RedHat libxml2-0:2.9.7-12.el8_5 *
Text-Only JBCS RedHat libxml2 *
Libxml2 Ubuntu bionic *
Libxml2 Ubuntu esm-infra-legacy/trusty *
Libxml2 Ubuntu esm-infra/bionic *
Libxml2 Ubuntu esm-infra/focal *
Libxml2 Ubuntu esm-infra/xenial *
Libxml2 Ubuntu focal *
Libxml2 Ubuntu impish *
Libxml2 Ubuntu trusty *
Libxml2 Ubuntu trusty/esm *
Libxml2 Ubuntu upstream *
Libxml2 Ubuntu xenial *

Potential Mitigations

References