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CVE-2020-12762

HIGHCVSS 7.8/10EPSS 1.89%

Last modified

CVE-2020-12762 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.. EPSS estimates a 1.89% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
1.89%

76.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Json-CJson-C< 0.15-20200726
FedoraprojectFedora30
FedoraprojectFedora31
FedoraprojectFedora32
DebianDebian Linux8.0
DebianDebian Linux9.0
DebianDebian Linux10.0
CanonicalUbuntu Linux12.04
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux16.04
CanonicalUbuntu Linux18.04
CanonicalUbuntu Linux19.10
CanonicalUbuntu Linux20.04
SiemensSinec InsAll versions
SiemensSinec Ins1.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-12762?
json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.
How severe is CVE-2020-12762?
CVE-2020-12762 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.89% probability of exploitation in the next 30 days.
How do I fix CVE-2020-12762?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST