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cveMitreCVE-2020-12762
HistoryMay 09, 2020 - 6:15 p.m.

CVE-2020-12762

2020-05-0918:15:11
CWE-190
CWE-787
mitre
web.nvd.nist.gov
475
3
cve-2020-12762
json-c
integer overflow
out-of-bounds write
nvd

CVSS2

6.8

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

7.8

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

8

Confidence

High

EPSS

0.001

Percentile

44.5%

JSON

json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.

Affected configurations

Nvd
Node
json-cjson-cRange<0.15-20200726
Node
fedoraprojectfedoraMatch30
OR
fedoraprojectfedoraMatch31
OR
fedoraprojectfedoraMatch32
Node
debiandebian_linuxMatch8.0
OR
debiandebian_linuxMatch9.0
OR
debiandebian_linuxMatch10.0
Node
canonicalubuntu_linuxMatch12.04-
OR
canonicalubuntu_linuxMatch14.04esm
OR
canonicalubuntu_linuxMatch16.04esm
OR
canonicalubuntu_linuxMatch18.04lts
OR
canonicalubuntu_linuxMatch19.10
OR
canonicalubuntu_linuxMatch20.04lts
Node
siemenssinec_insMatch-
OR
siemenssinec_insMatch1.0-
OR
siemenssinec_insMatch1.0sp1

References

Social References

More

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2021-11-09 13:10:09
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(RHSA-2021:4382) Moderate: json-c security and bug fix update
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(RHSA-2024:0573) Moderate: libfastjson security update
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(RHSA-2024:1154) Moderate: libfastjson security update
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Siemens SINEC INS
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CVSS2

6.8

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

7.8

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

8

Confidence

High

EPSS

0.001

Percentile

44.5%

JSON
Related for CVE-2020-12762
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