7.8

CVE-2020-12762

Exploit
json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Json-c ≫ Json-c Version < 0.15-20200726
Fedoraproject ≫ Fedora Version 30
Fedoraproject ≫ Fedora Version 31
Fedoraproject ≫ Fedora Version 32
Debian ≫ Debian Linux Version 8.0
Debian ≫ Debian Linux Version 9.0
Debian ≫ Debian Linux Version 10.0
Canonical ≫ Ubuntu Linux Version 12.04 SwEdition -
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 19.10
Canonical ≫ Ubuntu Linux Version 20.04 SwEdition lts
Siemens ≫ Sinec Ins Version -
Siemens ≫ Sinec Ins Version 1.0 Update -
Siemens ≫ Sinec Ins Version 1.0 Update sp1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.9% 0.781
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NIST 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
CISA-ADP 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
Third Party Advisory
https://github.com/json-c/json-c/pull/592
Patch
Third Party Advisory
Exploit
https://github.com/rsyslog/libfastjson/issues/161
Third Party Advisory
Exploit
https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2020/07/msg00031.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2023/06/msg00023.html
Third Party Advisory
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
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210521-0001/
Third Party Advisory
https://usn.ubuntu.com/4360-1/
Third Party Advisory
https://usn.ubuntu.com/4360-4/
Third Party Advisory
https://www.debian.org/security/2020/dsa-4741
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/07/msg00021.html