AZL-31642

    Dashboard / Vulnerabilities / AZL-31642

    AZL-31642

    Published: 6 Sept 2023Last Modified: 21 Apr 2026
    Upstream:

    Summary: CVE-2023-4622 affecting package hyperv-daemons for versions less than 5.15.135.1-1

    Details: A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.

    Affected packages

    Package

    Name: hyperv-daemons

    Purl: pkg:rpm/azure-linux/hyperv-daemons

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.15.135.1-1

    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
    AZL-31642 | CVE-DB