CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
44.5%
Issue Overview:
json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend. (CVE-2020-12762)
Affected Packages:
json-c
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update json-c to update your system.
New Packages:
aarch64:
json-c-0.11-4.amzn2.0.4.aarch64
json-c-devel-0.11-4.amzn2.0.4.aarch64
json-c-debuginfo-0.11-4.amzn2.0.4.aarch64
i686:
json-c-0.11-4.amzn2.0.4.i686
json-c-devel-0.11-4.amzn2.0.4.i686
json-c-debuginfo-0.11-4.amzn2.0.4.i686
noarch:
json-c-doc-0.11-4.amzn2.0.4.noarch
src:
json-c-0.11-4.amzn2.0.4.src
x86_64:
json-c-0.11-4.amzn2.0.4.x86_64
json-c-devel-0.11-4.amzn2.0.4.x86_64
json-c-debuginfo-0.11-4.amzn2.0.4.x86_64
Red Hat: CVE-2020-12762
Mitre: CVE-2020-12762
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | json-c | < 0.11-4.amzn2.0.4 | json-c-0.11-4.amzn2.0.4.aarch64.rpm |
Amazon Linux | 2 | aarch64 | json-c-devel | < 0.11-4.amzn2.0.4 | json-c-devel-0.11-4.amzn2.0.4.aarch64.rpm |
Amazon Linux | 2 | aarch64 | json-c-debuginfo | < 0.11-4.amzn2.0.4 | json-c-debuginfo-0.11-4.amzn2.0.4.aarch64.rpm |
Amazon Linux | 2 | i686 | json-c | < 0.11-4.amzn2.0.4 | json-c-0.11-4.amzn2.0.4.i686.rpm |
Amazon Linux | 2 | i686 | json-c-devel | < 0.11-4.amzn2.0.4 | json-c-devel-0.11-4.amzn2.0.4.i686.rpm |
Amazon Linux | 2 | i686 | json-c-debuginfo | < 0.11-4.amzn2.0.4 | json-c-debuginfo-0.11-4.amzn2.0.4.i686.rpm |
Amazon Linux | 2 | noarch | json-c-doc | < 0.11-4.amzn2.0.4 | json-c-doc-0.11-4.amzn2.0.4.noarch.rpm |
Amazon Linux | 2 | x86_64 | json-c | < 0.11-4.amzn2.0.4 | json-c-0.11-4.amzn2.0.4.x86_64.rpm |
Amazon Linux | 2 | x86_64 | json-c-devel | < 0.11-4.amzn2.0.4 | json-c-devel-0.11-4.amzn2.0.4.x86_64.rpm |
Amazon Linux | 2 | x86_64 | json-c-debuginfo | < 0.11-4.amzn2.0.4 | json-c-debuginfo-0.11-4.amzn2.0.4.x86_64.rpm |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
44.5%