Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 46.9%
CVSS Severity
CVSS v3 Score 5.5
CVSS v2 Score 4.3
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36009
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ujson/OSV-2021-955.yaml
- https://github.com/ultrajson/ultrajson/issues/501
- https://github.com/ultrajson/ultrajson/issues/502#issuecomment-1031747284
- https://github.com/ultrajson/ultrajson/pull/504
- https://lists.debian.org/debian-lts-announce/2022/02/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CN7W3GOXALINKFUUE7ICQIC2EF5HNKUQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NAU5N4A7EUK2AMUCOLYDD5ARXAJYZBD2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O6JUWQTJLA2CMG4CJN7DCUVSOXLZIIXL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ULX35TSWLBBIMEH44MUORPXYYRZKEDC6/
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36009
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ujson/OSV-2021-955.yaml
- https://github.com/ultrajson/ultrajson/issues/501
- https://github.com/ultrajson/ultrajson/issues/502#issuecomment-1031747284
- https://github.com/ultrajson/ultrajson/pull/504
- https://lists.debian.org/debian-lts-announce/2022/02/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CN7W3GOXALINKFUUE7ICQIC2EF5HNKUQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NAU5N4A7EUK2AMUCOLYDD5ARXAJYZBD2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O6JUWQTJLA2CMG4CJN7DCUVSOXLZIIXL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ULX35TSWLBBIMEH44MUORPXYYRZKEDC6/
Products affected by CVE-2021-45958
-
cpe:2.3:a:ultrajson_project:ultrajson:1.19
-
cpe:2.3:a:ultrajson_project:ultrajson:1.34
-
cpe:2.3:a:ultrajson_project:ultrajson:1.35
-
cpe:2.3:a:ultrajson_project:ultrajson:2.0.0
-
cpe:2.3:a:ultrajson_project:ultrajson:2.0.1
-
cpe:2.3:a:ultrajson_project:ultrajson:2.0.2
-
cpe:2.3:a:ultrajson_project:ultrajson:2.0.3
-
cpe:2.3:a:ultrajson_project:ultrajson:3.0.0
-
cpe:2.3:a:ultrajson_project:ultrajson:3.1.0
-
cpe:2.3:a:ultrajson_project:ultrajson:3.2.0
-
cpe:2.3:a:ultrajson_project:ultrajson:4.0.0
-
cpe:2.3:a:ultrajson_project:ultrajson:4.0.1
-
cpe:2.3:a:ultrajson_project:ultrajson:4.0.2
-
cpe:2.3:a:ultrajson_project:ultrajson:4.1.0
-
cpe:2.3:a:ultrajson_project:ultrajson:4.2.0
-
cpe:2.3:a:ultrajson_project:ultrajson:4.3.0
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cpe:2.3:a:ultrajson_project:ultrajson:5.0.0
-
cpe:2.3:a:ultrajson_project:ultrajson:5.1.0
-
cpe:2.3:o:debian:debian_linux:9.0
-
cpe:2.3:o:fedoraproject:fedora:35
-
cpe:2.3:o:fedoraproject:fedora:36
-
cpe:2.3:o:fedoraproject:fedora:37