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  2. CVE-2020-12762
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CVE-2020-12762

high
  • Information
  • CPEs
  • Plugins

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

https://github.com/json-c/json-c/pull/592

https://github.com/rsyslog/libfastjson/issues/161

https://lists.fedoraproject.org/archives/list/[email protected]/message/CQQRRGBQCAWNCCJ2HN3W5SSCZ4QGMXQI/

https://usn.ubuntu.com/4360-1/

https://lists.fedoraproject.org/archives/list/[email protected]/message/CBR36IXYBHITAZFB5PFBJTED22WO5ONB/

https://lists.fedoraproject.org/archives/list/[email protected]/message/W226TSCJBEOXDUFVKNWNH7ETG7AR6MCS/

https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html

https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html

https://usn.ubuntu.com/4360-4/

https://security.gentoo.org/glsa/202006-13

https://lists.debian.org/debian-lts-announce/2020/07/msg00031.html

https://www.debian.org/security/2020/dsa-4741

https://security.netapp.com/advisory/ntap-20210521-0001/

Details

Source: MITRE

Published: 2020-05-09

Updated: 2021-05-21

Type: CWE-787

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

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