CVE-2021-45958

UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode). Exploitation can, for example, use a large amount of indentation.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ujson/OSV-2021-955.yaml	Exploit Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36009	Exploit Issue Tracking Third Party Advisory
https://github.com/ultrajson/ultrajson/issues/501	Exploit Issue Tracking Third Party Advisory
https://github.com/ultrajson/ultrajson/issues/502#issuecomment-1031747284	Issue Tracking Patch Third Party Advisory
https://github.com/ultrajson/ultrajson/pull/504	Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/02/msg00023.html	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CN7W3GOXALINKFUUE7ICQIC2EF5HNKUQ/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ULX35TSWLBBIMEH44MUORPXYYRZKEDC6/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O6JUWQTJLA2CMG4CJN7DCUVSOXLZIIXL/

Configurations

Configuration 1 (hide)

cpe:2.3:a:ultrajson_project:ultrajson:*:*:*:*:*:python:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

Information

Published : 2022-01-01 00:15

Updated : 2022-05-07 08:15

NVD link : CVE-2021-45958

Mitre link : CVE-2021-45958

JSON object : View

Products Affected

fedoraproject

fedora

debian

debian_linux

ultrajson_project

ultrajson

CWE

CWE-787

Out-of-bounds Write

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