BIT-tomcat-2021-25122

    Dashboard / Vulnerabilities / BIT-tomcat-2021-25122

    BIT-tomcat-2021-25122

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Apache Tomcat h2c request mix-up

    Details: When responding to new h2c connection requests, Apache Tomcat versions 9.0.0 through 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request.

    References: http://www.openwall.com/lists/oss-security/2021/03/01/1, https://lists.apache.org/thread.html/r7b95bc248603360501f18c8eb03bb6001ec0ee3296205b34b07105b7%40%3Cannounce.apache.org%3E, https://lists.apache.org/thread.html/r7b95bc248603360501f18c8eb03bb6001ec0ee3296205b34b07105b7%40%3Cannounce.tomcat.apache.org%3E, https://lists.apache.org/thread.html/r7b95bc248603360501f18c8eb03bb6001ec0ee3296205b34b07105b7%40%3Cdev.tomcat.apache.org%3E, https://lists.apache.org/thread.html/r7b95bc248603360501f18c8eb03bb6001ec0ee3296205b34b07105b7%40%3Cusers.tomcat.apache.org%3E, https://lists.apache.org/thread.html/rcd90bf36b1877e1310b87ecd14ed7bbb15da52b297efd9f0e7253a3b%40%3Cusers.tomcat.apache.org%3E, https://lists.apache.org/thread.html/rd0463f9a5cbc02a485404c4b990f0da452e5ac5c237808edba11c947%40%3Cusers.tomcat.apache.org%3E, https://lists.apache.org/thread.html/rf6d5d57b114678d8898005faef31e9fd6d7c981fcc4ccfc3bc272fc9%40%3Cdev.tomcat.apache.org%3E, https://lists.debian.org/debian-lts-announce/2021/03/msg00018.html, https://security.gentoo.org/glsa/202208-34, https://security.netapp.com/advisory/ntap-20210409-0002/, https://www.debian.org/security/2021/dsa-4891, https://www.oracle.com//security-alerts/cpujul2021.html, https://www.oracle.com/security-alerts/cpujan2022.html, https://www.oracle.com/security-alerts/cpuoct2021.html, https://nvd.nist.gov/vuln/detail/CVE-2021-25122

    Affected packages

    Package

    Name: tomcat

    Purl: pkg:bitnami/tomcat

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 8.5.0
    Fixed -8.5.62

    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-2021-25122 | CVE-DB