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    CVE-2018-19824

    In the Linux kernel through 4.19.6, a local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c.

    Published:Dec 3, 2018
    Last Modified:Nov 21, 2024
    EPS:Dec 3, 2018
    EPSS Score:0.00063
    CVSS Score:7.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://www.securityfocus.com/bid/106109
    https://access.redhat.com/errata/RHSA-2019:2703
    https://bugzilla.suse.com/show_bug.cgi?id=1118152
    https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=5f8cf712582617d523120df67d392059eaf2fc4b
    https://github.com/torvalds/linux/commit/5f8cf712582617d523120df67d392059eaf2fc4b
    https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
    https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
    https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
    https://support.f5.com/csp/article/K98155950
    https://usn.ubuntu.com/3879-1/
    https://usn.ubuntu.com/3879-2/
    https://usn.ubuntu.com/3930-1/
    https://usn.ubuntu.com/3930-2/
    https://usn.ubuntu.com/3931-1/
    https://usn.ubuntu.com/3931-2/
    https://usn.ubuntu.com/3933-1/
    https://usn.ubuntu.com/3933-2/
    http://www.securityfocus.com/bid/106109
    https://access.redhat.com/errata/RHSA-2019:2703
    https://bugzilla.suse.com/show_bug.cgi?id=1118152
    https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=5f8cf712582617d523120df67d392059eaf2fc4b
    https://github.com/torvalds/linux/commit/5f8cf712582617d523120df67d392059eaf2fc4b
    https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
    https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
    https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
    https://support.f5.com/csp/article/K98155950
    https://usn.ubuntu.com/3879-1/
    https://usn.ubuntu.com/3879-2/
    https://usn.ubuntu.com/3930-1/
    https://usn.ubuntu.com/3930-2/
    https://usn.ubuntu.com/3931-1/
    https://usn.ubuntu.com/3931-2/
    https://usn.ubuntu.com/3933-1/
    https://usn.ubuntu.com/3933-2/

    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