VulnerabilityModified
CVE-2021-45958
UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode).
MEDIUM 5.5EPSS 1.55%
Does this matter?
Lower severity and a low EPSS score (1.55%). Track it; it rarely justifies an emergency change on its own.
Description
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.55% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- ultrajson project/ultrajson · debian/debian linux · fedoraproject/fedora
- Source
- cve@mitre.org
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36009Exploit, Issue Tracking, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ujson/OSV-2021-955.yamlExploit, Third Party Advisory
- https://github.com/ultrajson/ultrajson/issues/501Exploit, Issue Tracking, Third Party Advisory
- https://github.com/ultrajson/ultrajson/issues/502#issuecomment-1031747284Issue Tracking, Patch, Third Party Advisory
- https://github.com/ultrajson/ultrajson/pull/504Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/02/msg00023.htmlMailing List, Third Party Advisory
- 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=36009Exploit, Issue Tracking, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ujson/OSV-2021-955.yamlExploit, Third Party Advisory
- https://github.com/ultrajson/ultrajson/issues/501Exploit, Issue Tracking, Third Party Advisory
- https://github.com/ultrajson/ultrajson/issues/502#issuecomment-1031747284Issue Tracking, Patch, Third Party Advisory
- https://github.com/ultrajson/ultrajson/pull/504Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/02/msg00023.htmlMailing List, Third Party Advisory
- 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/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.