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    CVE-2019-5603

    In FreeBSD 12.0-STABLE before r350261, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r350263, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, system calls operating on file descriptors as part of mqueuefs did not properly release the reference allowing a malicious user to overflow the counter allowing access to files, directories, and sockets opened by processes owned by other users.

    Published:Jul 26, 2019
    Last Modified:Nov 21, 2024
    EPS:Jul 26, 2019
    EPSS Score:0.00246
    CVSS Score:7.8

    Affected Products

    Vendor
    Freebsd
    Product
    Freebsd

    Exploits

    https://github.com/raymontag/CVE-2019-5603

    Related CVEs

    CVE-2026-58094 (CVSS 7.8) — The FIOSSHMLPGCNF ioctl(2) operation configures the page size for a largepage shared memory object. This is i…
    CVE-2026-58093 (CVSS 7) — The TIOCSCTTY ioctl handler drops the tty lock in order to acquire the process tree lock. After reacquiring t…
    CVE-2026-58097 (CVSS 7.8) — mp_SetEnddisc() copied a user-supplied PSN endpoint value without length validation, allowing a buffer overflo…
    CVE-2026-58096 (CVSS 8.8) — LcpDecodeConfig() did not validate the length of received endpoint discriminator options against the minimum r…
    CVE-2026-58095 (CVSS 8.8) — mp_Enddisc() used incorrect length calculations when formatting endpoint discriminator addresses for display, …
    CVE-2026-58092 (CVSS 8.1) — In FreeBSD 15.0, the kernel structure used to represent user credentials changed: previously the primary group…
    CVE-2026-58091 (CVSS 7.8) — The implementation of this ioctl attempts to acquire locks on all channels in a sync group. If locking a chan…
    CVE-2026-58090 (CVSS 7.8) — The SOCK_STREAM receive path in the unix socket implementation failed to fully detach control messages from th…
    CVE-2026-58089 (CVSS 7.8) — When a process calls execve(2) to execute a setuid or setgid image, hwpmc(4) is supposed to detach PMCs owned …
    CVE-2026-58088 (CVSS 7.4) — The ELF core dump code counted the number of dumpable VM map entries, allocated a buffer for the corresponding…

    References

    http://packetstormsecurity.com/files/153752/FreeBSD-Security-Advisory-FreeBSD-SA-19-15.mqueuefs.html
    http://packetstormsecurity.com/files/154172/FreeBSD-Security-Advisory-FreeBSD-SA-19-24.mqueuefs.html
    https://seclists.org/bugtraq/2019/Aug/35
    https://security.FreeBSD.org/advisories/FreeBSD-SA-19:15.mqueuefs.asc
    https://security.FreeBSD.org/advisories/FreeBSD-SA-19:24.mqueuefs.asc
    https://security.netapp.com/advisory/ntap-20190814-0003/
    http://packetstormsecurity.com/files/153752/FreeBSD-Security-Advisory-FreeBSD-SA-19-15.mqueuefs.html
    http://packetstormsecurity.com/files/154172/FreeBSD-Security-Advisory-FreeBSD-SA-19-24.mqueuefs.html
    https://seclists.org/bugtraq/2019/Aug/35
    https://security.FreeBSD.org/advisories/FreeBSD-SA-19:15.mqueuefs.asc
    https://security.FreeBSD.org/advisories/FreeBSD-SA-19:24.mqueuefs.asc
    https://security.netapp.com/advisory/ntap-20190814-0003/

    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