SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-10663

The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability.

HIGH 7.5EPSS 6.81%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (6.81%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar to CVE-2013-0269, but does not rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead to creation of a malicious object within the interpreter, with adverse effects that are application-dependent.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
6.81% probability · 94th percentile
CISA KEV
Not listed
Weakness
CWE-20
Affected
json project/json · fedoraproject/fedora · opensuse/leap · debian/debian linux · apple/macos
Source
cve@mitre.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.