5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.8 Medium
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
39.4%
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.
bugs.chromium.org/p/oss-fuzz/issues/detail?id=36009
github.com/google/oss-fuzz-vulns/blob/main/vulns/ujson/OSV-2021-955.yaml
github.com/ultrajson/ultrajson/issues/501
github.com/ultrajson/ultrajson/issues/502
github.com/ultrajson/ultrajson/pull/504
lists.debian.org/debian-lts-announce/2022/02/msg00023.html
lists.fedoraproject.org/archives/list/[email protected]/message/CN7W3GOXALINKFUUE7ICQIC2EF5HNKUQ/
lists.fedoraproject.org/archives/list/[email protected]/message/NAU5N4A7EUK2AMUCOLYDD5ARXAJYZBD2/
lists.fedoraproject.org/archives/list/[email protected]/message/O6JUWQTJLA2CMG4CJN7DCUVSOXLZIIXL/
lists.fedoraproject.org/archives/list/[email protected]/message/ULX35TSWLBBIMEH44MUORPXYYRZKEDC6/
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.8 Medium
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
39.4%