SB2022040606 - Denial of service in ultrajson
Published: April 6, 2022
Security Bulletin ID
SB2022040606
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Stack-based buffer overflow (CVE-ID: CVE-2021-45958)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in Buffer_AppendIndentUnchecked. A remote unauthenticated attacker can trigger stack-based buffer overflow and cause a denial of service condition on the target system.
Remediation
Install update from vendor's website.
References
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ujson/OSV-2021-955.yaml
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36009
- 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@lists.fedoraproject.org/message/CN7W3GOXALINKFUUE7ICQIC2EF5HNKUQ/