BIT-tomcat-2021-43980

    Dashboard / Vulnerabilities / BIT-tomcat-2021-43980

    BIT-tomcat-2021-43980

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Apache Tomcat: Information disclosure

    Details: The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0, 10.0.0 to 10.0.18, 9.0.0 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

    References: http://www.openwall.com/lists/oss-security/2022/09/28/1, https://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3, https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html, https://www.debian.org/security/2022/dsa-5265, https://nvd.nist.gov/vuln/detail/CVE-2021-43980

    Affected packages

    Package

    Name: tomcat

    Purl: pkg:bitnami/tomcat

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 8.5.0
    Fixed -8.5.78

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    BIT-tomcat-2021-43980 | CVE-DB