high
7.8
CWE
190 787
Advisory Published
Updated

CVE-2020-12762: Integer Overflow

First published: Sat May 09 2020(Updated: )

json-c could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow and out-of-bounds write. By persuading a victim to run a specially crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system.

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Json-c Json-c<0.15-20200726
Fedoraproject Fedora=30
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Canonical Ubuntu Linux=12.04
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
Canonical Ubuntu Linux=20.04
Siemens Sinec Ins
Siemens Sinec Ins=1.0
Siemens Sinec Ins=1.0-sp1
redhat/json-c-0.14<3.
3.
redhat/libfastjson<0.99.9.1
0.99.9.1
IBM QRadar SIEM<=7.5.0 GA
IBM QRadar SIEM<=7.4.3 GA - 7.4.3 FP4
IBM QRadar SIEM<=7.3.3 GA - 7.3.3 FP10
ubuntu/json-c<0.12.1-1.3ubuntu0.3
0.12.1-1.3ubuntu0.3
ubuntu/json-c<0.13.1+dfsg-4ubuntu0.3
0.13.1+dfsg-4ubuntu0.3
ubuntu/json-c<0.13.1+dfsg-7ubuntu0.3
0.13.1+dfsg-7ubuntu0.3
ubuntu/json-c<0.11-3ubuntu1.2+
0.11-3ubuntu1.2+
ubuntu/json-c<0.11-4ubuntu2.6
0.11-4ubuntu2.6
debian/json-c
0.15-2+deb11u1
0.16-2
0.17-1
debian/libfastjson<=0.99.9-1
1.2304.0-1

Remedy

https://github.com/json-c/json-c/pull/592

Remedy

https://github.com/json-c/json-c/pull/592/commits/099016b7e8d70a6d5dd814e788bba08d33d48426

Remedy

https://github.com/json-c/json-c/pull/592/commits/77d935b7ae7871a1940cd827e850e6063044ec45

Remedy

https://github.com/json-c/json-c/pull/592/commits/d07b91014986900a3a75f306d302e13e005e9d67

Remedy

https://github.com/besser82/json-c/commit/7a4807fe0cdb1d9e20273c79762cbf54833aaae4

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID of this vulnerability?

    The vulnerability ID is CVE-2020-12762.

  • What is the severity of CVE-2020-12762?

    The severity of CVE-2020-12762 is high.

  • Which software products and versions are affected by this vulnerability?

    This vulnerability affects IBM QRadar SIEM versions 7.5.0 GA, 7.4.3 GA - 7.4.3 FP4, and 7.3.3 GA - 7.3.3 FP10.

  • How can I fix CVE-2020-12762?

    To fix CVE-2020-12762, you can apply the patches provided by IBM for affected versions of IBM QRadar SIEM.

  • Where can I find more information about CVE-2020-12762?

    You can find more information about CVE-2020-12762 on the following websites: [IBM X-Force Exchange](https://exchange.xforce.ibmcloud.com/vulnerabilities/182094), [IBM Support](https://www.ibm.com/support/pages/node/6574787), [Siemens ProductCERT](https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf).

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