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.
References (16)
Core 16
Core References
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CQQRRGBQCAWNCCJ2HN3W5SSCZ4QGMXQI/
Third Party Advisory vendor-advisory
https://usn.ubuntu.com/4360-1/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBR36IXYBHITAZFB5PFBJTED22WO5ONB/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W226TSCJBEOXDUFVKNWNH7ETG7AR6MCS/
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html
Third Party Advisory vendor-advisory
https://usn.ubuntu.com/4360-4/
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202006-13
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2020/07/msg00031.html
Third Party Advisory vendor-advisory
https://www.debian.org/security/2020/dsa-4741
Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2023/06/msg00023.html
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
Exploit, Patch, Third Party Advisory
https://github.com/json-c/json-c/pull/592
Exploit, Third Party Advisory
https://github.com/rsyslog/libfastjson/issues/161
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210521-0001/
Scores
CVSS v3
7.8
EPSS
0.0028
EPSS Percentile
51.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-190
CWE-787
Status
published
Products (15)
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
debian/debian_linux
8.0
debian/debian_linux
9.0
debian/debian_linux
10.0
fedoraproject/fedora
30
... and 5 more
Published
May 09, 2020
Tracked Since
Feb 18, 2026