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CVE Vulnerabilities

CVE-2020-36329

Use After Free

Published: May 21, 2021 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
9.8 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-36329
CWEhttps://cwe.mitre.org/data/definitions/416.html

A flaw was found in libwebp in versions before 1.0.1. A use-after-free was found due to a thread being killed too early. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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

NameVendorStart VersionEnd Version
LibwebpWebmproject*1.0.1 (excluding)
Red Hat Enterprise Linux 7RedHatlibwebp-0:0.3.0-10.el7_9*
Red Hat Enterprise Linux 7RedHatqt5-qtimageformats-0:5.9.7-2.el7_9*
Red Hat Enterprise Linux 8RedHatlibwebp-0:1.0.0-3.el8_4*
Red Hat Enterprise Linux 8.1 Extended Update SupportRedHatlibwebp-0:1.0.0-4.el8_1*
Red Hat Enterprise Linux 8.2 Extended Update SupportRedHatlibwebp-0:1.0.0-4.el8_2*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-controller-rhel8:v1.4.6-4*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-log-reader-rhel8:v1.4.6-4*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-must-gather-rhel8:v1.4.6-4*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-operator-bundle:v1.4.6-5*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-registry-rhel8:v1.4.6-4*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-rsync-transfer-rhel8:v1.4.6-4*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-ui-rhel8:v1.4.6-4*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-velero-plugin-for-aws-rhel8:v1.4.6-4*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-velero-plugin-for-gcp-rhel8:v1.4.6-3*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-velero-plugin-for-microsoft-azure-rhel8:v1.4.6-4*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-velero-restic-restore-helper-rhel8:v1.4.6-5*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-migration-velero-rhel8:v1.4.6-5*
Red Hat Migration Toolkit for Containers 1.4RedHatrhmtc/openshift-velero-plugin-rhel8:v1.4.6-4*
LibwebpUbuntubionic*
LibwebpUbuntudevel*
LibwebpUbuntuesm-infra-legacy/trusty*
LibwebpUbuntuesm-infra/bionic*
LibwebpUbuntuesm-infra/focal*
LibwebpUbuntuesm-infra/xenial*
LibwebpUbuntufocal*
LibwebpUbuntugroovy*
LibwebpUbuntuhirsute*
LibwebpUbuntuimpish*
LibwebpUbuntujammy*
LibwebpUbuntutrusty*
LibwebpUbuntutrusty/esm*
LibwebpUbuntuxenial*

Potential Mitigations

References

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