Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 39.1%
CVSS Severity
CVSS v3 Score 7.8
CVSS v2 Score 6.8
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
- https://github.com/json-c/json-c/pull/592
- https://github.com/rsyslog/libfastjson/issues/161
- https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00031.html
- https://lists.debian.org/debian-lts-announce/2023/06/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBR36IXYBHITAZFB5PFBJTED22WO5ONB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CQQRRGBQCAWNCCJ2HN3W5SSCZ4QGMXQI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W226TSCJBEOXDUFVKNWNH7ETG7AR6MCS/
- https://security.gentoo.org/glsa/202006-13
- https://security.netapp.com/advisory/ntap-20210521-0001/
- https://usn.ubuntu.com/4360-1/
- https://usn.ubuntu.com/4360-4/
- https://www.debian.org/security/2020/dsa-4741
- https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
- https://github.com/json-c/json-c/pull/592
- https://github.com/rsyslog/libfastjson/issues/161
- https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00031.html
- https://lists.debian.org/debian-lts-announce/2023/06/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBR36IXYBHITAZFB5PFBJTED22WO5ONB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CQQRRGBQCAWNCCJ2HN3W5SSCZ4QGMXQI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W226TSCJBEOXDUFVKNWNH7ETG7AR6MCS/
- https://security.gentoo.org/glsa/202006-13
- https://security.netapp.com/advisory/ntap-20210521-0001/
- https://usn.ubuntu.com/4360-1/
- https://usn.ubuntu.com/4360-4/
- https://www.debian.org/security/2020/dsa-4741
Products affected by CVE-2020-12762
-
cpe:2.3:a:json-c:json-c:-
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cpe:2.3:a:json-c:json-c:0.1
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cpe:2.3:a:json-c:json-c:0.10-20120530
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cpe:2.3:a:json-c:json-c:0.11-20130402
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cpe:2.3:a:json-c:json-c:0.12-20140410
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cpe:2.3:a:json-c:json-c:0.12.1-20160607
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cpe:2.3:a:json-c:json-c:0.13-20171207
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cpe:2.3:a:json-c:json-c:0.13.1-20180305
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cpe:2.3:a:json-c:json-c:0.14-20200419
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cpe:2.3:a:json-c:json-c:0.2
-
cpe:2.3:a:json-c:json-c:0.3
-
cpe:2.3:a:json-c:json-c:0.4
-
cpe:2.3:a:json-c:json-c:0.5
-
cpe:2.3:a:json-c:json-c:0.6
-
cpe:2.3:a:json-c:json-c:0.7
-
cpe:2.3:a:json-c:json-c:0.8
-
cpe:2.3:a:json-c:json-c:0.9
-
cpe:2.3:a:siemens:sinec_ins:-
-
cpe:2.3:a:siemens:sinec_ins:1.0
-
cpe:2.3:o:canonical:ubuntu_linux:12.04
-
cpe:2.3:o:canonical:ubuntu_linux:14.04
-
cpe:2.3:o:canonical:ubuntu_linux:16.04
-
cpe:2.3:o:canonical:ubuntu_linux:18.04
-
cpe:2.3:o:canonical:ubuntu_linux:19.10
-
cpe:2.3:o:canonical:ubuntu_linux:20.04
-
cpe:2.3:o:debian:debian_linux:10.0
-
cpe:2.3:o:debian:debian_linux:8.0
-
cpe:2.3:o:debian:debian_linux:9.0
-
cpe:2.3:o:fedoraproject:fedora:30
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cpe:2.3:o:fedoraproject:fedora:31
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cpe:2.3:o:fedoraproject:fedora:32