MGASA-2023-0303

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    MGASA-2023-0303

    Published: 27 Oct 2023Last Modified: 16 Apr 2026

    Summary: Updated bind packages fix security vulnerabilities

    Details: The code that processes control channel messages sent to `named` calls certain functions recursively during packet parsing. Recursion depth is only limited by the maximum accepted packet size; depending on the environment, this may cause the packet-parsing code to run out of available stack memory, causing `named` to terminate unexpectedly. Since each incoming control channel message is fully parsed before its contents are authenticated, exploiting this flaw does not require the attacker to hold a valid RNDC key; only network access to the control channel's configured TCP port is necessary. (CVE-2023-3341) A flaw in the networking code handling DNS-over-TLS queries may cause `named` to terminate unexpectedly due to an assertion failure. This happens when internal data structures are incorrectly reused under significant DNS-over-TLS query load. (CVE-2023-4236)

    References: https://advisories.mageia.org/MGASA-2023-0303.html, https://bugs.mageia.org/show_bug.cgi?id=32039, https://ubuntu.com/security/notices/USN-6390-1

    Affected packages

    Package

    Name: bind

    Purl: pkg:rpm/mageia/bind?arch=source&distro=mageia-9

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -9.18.15-2.2.mga9

    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
    MGASA-2023-0303 | CVE-DB