ID

VAR-202005-0397

CVE

CVE-2020-12762

TITLE

json-c Input validation error vulnerability

DESCRIPTION

json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: json-c security and bug fix update Advisory ID: RHSA-2021:4382-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:4382 Issue date: 2021-11-09 CVE Names: CVE-2020-12762 ==================================================================== 1. Summary: An update for json-c is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux CRB (v. 8) - noarch 3. Description: JSON-C implements a reference counting object model that allows users to easily construct JavaScript Object Notation (JSON) objects in C, output them as JSON formatted strings, and parse JSON formatted strings back into the C representation of JSON objects. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Package List: Red Hat Enterprise Linux AppStream (v. 8): aarch64: json-c-debuginfo-0.13.1-2.el8.aarch64.rpm json-c-debugsource-0.13.1-2.el8.aarch64.rpm json-c-devel-0.13.1-2.el8.aarch64.rpm ppc64le: json-c-debuginfo-0.13.1-2.el8.ppc64le.rpm json-c-debugsource-0.13.1-2.el8.ppc64le.rpm json-c-devel-0.13.1-2.el8.ppc64le.rpm s390x: json-c-debuginfo-0.13.1-2.el8.s390x.rpm json-c-debugsource-0.13.1-2.el8.s390x.rpm json-c-devel-0.13.1-2.el8.s390x.rpm x86_64: json-c-debuginfo-0.13.1-2.el8.i686.rpm json-c-debuginfo-0.13.1-2.el8.x86_64.rpm json-c-debugsource-0.13.1-2.el8.i686.rpm json-c-debugsource-0.13.1-2.el8.x86_64.rpm json-c-devel-0.13.1-2.el8.i686.rpm json-c-devel-0.13.1-2.el8.x86_64.rpm Red Hat Enterprise Linux BaseOS (v. 8): Source: json-c-0.13.1-2.el8.src.rpm aarch64: json-c-0.13.1-2.el8.aarch64.rpm json-c-debuginfo-0.13.1-2.el8.aarch64.rpm json-c-debugsource-0.13.1-2.el8.aarch64.rpm ppc64le: json-c-0.13.1-2.el8.ppc64le.rpm json-c-debuginfo-0.13.1-2.el8.ppc64le.rpm json-c-debugsource-0.13.1-2.el8.ppc64le.rpm s390x: json-c-0.13.1-2.el8.s390x.rpm json-c-debuginfo-0.13.1-2.el8.s390x.rpm json-c-debugsource-0.13.1-2.el8.s390x.rpm x86_64: json-c-0.13.1-2.el8.i686.rpm json-c-0.13.1-2.el8.x86_64.rpm json-c-debuginfo-0.13.1-2.el8.i686.rpm json-c-debuginfo-0.13.1-2.el8.x86_64.rpm json-c-debugsource-0.13.1-2.el8.i686.rpm json-c-debugsource-0.13.1-2.el8.x86_64.rpm Red Hat Enterprise Linux CRB (v. 8): noarch: json-c-doc-0.13.1-2.el8.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2020-12762 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/ 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYYrej9zjgjWX9erEAQiU1g//YzM77GdfeN9wtXjfeQ400cw5AsR8XjOm 3eS4kMuwlN0w5reO9n3OnPs3SCZVDcoRmPJ1Z71eK796SyczEzfItkB8HVpPIL2E c8QfOQ1a2m/Izws30u8/xASfY3JXEWFeX5Pip7OrQ8T+6BhpsYEMzD7zC6aPXgzw g7T87IaVa1WPsORtd/KvDivVGBLt9jwzvjbJAOmRQ0ccWC9ylsjqXiuvDzFlyL+h R0tSJXyNDFebOwwAY5cJ0Go1NjlGC61K0SgB/S/WnQyqKcqN6kss/1fFCjGs/wvy Z52AMuB1BeOjPdxPydwErGjtl7qxn0ygpKwxKsHJwbhYpuUEBhkn6LG998y9QBVj gQDuySEzrR+0j1Tg579g/z1fvtbvXCU0/Wt01uoeWJlyKVR4B8dJAV4NHLFXoon8 Uw+dlJFvFPlu0LERlaYquQJ0FksWZH9G+3mrVo2F9X8IOMint0zNe+X+mE7zuhOX qluAe5stgV5BNtXkboSmt3R4mk4suNbgexZvyC9cMeIY+A2GNB4NHcVtwPVSs4Bg QG2SPVqwXL73ViKAS9YSof9uSY2hRXqSKs+BRnIVxKZS0EzFybv76NQtmx7NjZlG JUkHfT/W9UnTxfgmrDs6xYUKNCs6lyvkTmBfGf0+S+CLTToVImr9DPN/EO2r+/xS A4oHKkiq9g8\x8eca -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . Bugs fixed (https://bugzilla.redhat.com/): 2030932 - CVE-2021-44228 log4j-core: Remote code execution in Log4j 2.x when logs contain an attacker-controlled string value 5. Bugs fixed (https://bugzilla.redhat.com/): 1995656 - CVE-2021-36221 golang: net/http/httputil: panic due to racy read of persistConn after handler panic 5. The following advisory data is extracted from: https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_0573.json Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment. ========================================================================= Ubuntu Security Notice USN-4360-1 May 14, 2020 json-c vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 19.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 ESM - Ubuntu 12.04 ESM Summary: json-c could be made to execute arbitrary code if it received a specially crafted JSON file. An attacker could possibly use this issue to execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: libjson-c4 0.13.1+dfsg-7ubuntu0.1 Ubuntu 19.10: libjson-c4 0.13.1+dfsg-4ubuntu0.1 Ubuntu 18.04 LTS: libjson-c3 0.12.1-1.3ubuntu0.1 Ubuntu 16.04 LTS: libjson-c2 0.11-4ubuntu2.1 libjson0 0.11-4ubuntu2.1 Ubuntu 14.04 ESM: libjson-c2 0.11-3ubuntu1.2+esm1 libjson0 0.11-3ubuntu1.2+esm1 Ubuntu 12.04 ESM: libjson0 0.9-1ubuntu1.2 In general, a standard system update will make all the necessary changes. Bugs fixed (https://bugzilla.redhat.com/): 1983596 - CVE-2021-34558 golang: crypto/tls: certificate of wrong type is causing TLS client to panic 1992006 - CVE-2021-29923 golang: net: incorrect parsing of extraneous zero characters at the beginning of an IP address octet 1997017 - unprivileged client fails to get guest agent data 1998855 - Node drain: Sometimes source virt-launcher pod status is Failed and not Completed 2000251 - RoleBinding and ClusterRoleBinding brought in by kubevirt does not get reconciled when kind is ServiceAccount 2001270 - [VMIO] [Warm from Vmware] Snapshot files are not deleted after Successful Import 2001281 - [VMIO] [Warm from VMware] Source VM should not be turned ON if vmio import is removed 2001901 - [4.8.3] NNCP creation failures after nmstate-handler pod deletion 2007336 - 4.8.3 containers 2007776 - Failed to Migrate Windows VM with CDROM (readonly) 2008511 - [CNV-4.8.3] VMI is in LiveMigrate loop when Upgrading Cluster from 2.6.7/4.7.32 to OCP 4.8.13 2012890 - With descheduler during multiple VMIs migrations, some VMs are restarted 2025475 - [4.8.3] Upgrade from 2.6 to 4.x versions failed due to vlan-filtering issues 2026881 - [4.8.3] vlan-filtering is getting applied on veth ports 5. Red Hat OpenShift Container Storage is highly scalable, production-grade persistent storage for stateful applications running in the Red Hat OpenShift Container Platform. In addition to persistent storage, Red Hat OpenShift Container Storage provides a multicloud data management service with an S3 compatible API. Bug Fix(es): * Previously, when the namespace store target was deleted, no alert was sent to the namespace bucket because of an issue in calculating the namespace bucket health. With this update, the issue in calculating the namespace bucket health is fixed and alerts are triggered as expected. (BZ#1993873) * Previously, the Multicloud Object Gateway (MCG) components performed slowly and there was a lot of pressure on the MCG components due to non-optimized database queries. With this update the non-optimized database queries are fixed which reduces the compute resources and time taken for queries. Bugs fixed (https://bugzilla.redhat.com/): 1993873 - [4.8.z clone] Alert NooBaaNamespaceBucketErrorState is not triggered when namespacestore's target bucket is deleted 2006958 - CVE-2020-26301 nodejs-ssh2: Command injection by calling vulnerable method with untrusted input 5. Summary: The Migration Toolkit for Containers (MTC) 1.5.2 is now available. Description: The Migration Toolkit for Containers (MTC) enables you to migrate Kubernetes resources, persistent volume data, and internal container images between OpenShift Container Platform clusters, using the MTC web console or the Kubernetes API. Bugs fixed (https://bugzilla.redhat.com/): 2000734 - CVE-2021-3757 nodejs-immer: prototype pollution may lead to DoS or remote code execution 2005438 - Combining Rsync and Stunnel in a single pod can degrade performance (1.5 backport) 2006842 - MigCluster CR remains in "unready" state and source registry is inaccessible after temporary shutdown of source cluster 2007429 - "oc describe" and "oc log" commands on "Migration resources" tree cannot be copied after failed migration 2022017 - CVE-2021-3948 mig-controller: incorrect namespaces handling may lead to not authorized usage of Migration Toolkit for Containers (MTC) 5

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

input validation error

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Red Hat

SOURCES

LAST UPDATE DATE

2025-04-30T22:41:30.916000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE