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    CVE-2016-1885

    Integer signedness error in the amd64_set_ldt function in sys/amd64/amd64/sys_machdep.c in FreeBSD 9.3 before p39, 10.1 before p31, and 10.2 before p14 allows local users to cause a denial of service (kernel panic) via an i386_set_ldt system call, which triggers a heap-based buffer overflow.

    Published:Apr 8, 2016
    Last Modified:Apr 12, 2025
    EPS:Apr 8, 2016
    EPSS Score:0.0015
    CVSS Score:6.2

    Affected Products

    Vendor
    Freebsd
    Product
    Freebsd

    Exploits

    http://packetstormsecurity.com/files/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.htmlhttps://www.exploit-db.com/exploits/39570/http://packetstormsecurity.com/files/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.htmlhttps://www.exploit-db.com/exploits/39570/https://www.exploit-db.com/exploits/39570

    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/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.html
    http://seclists.org/fulldisclosure/2016/Mar/56
    http://seclists.org/fulldisclosure/2016/Mar/67
    http://www.coresecurity.com/advisories/freebsd-kernel-amd64setldt-heap-overflow
    http://www.securityfocus.com/archive/1/537812/100/0/threaded
    http://www.securityfocus.com/archive/1/537813/100/0/threaded
    http://www.securitytracker.com/id/1035309
    https://security.FreeBSD.org/advisories/FreeBSD-SA-16:15.sysarch.asc
    https://www.exploit-db.com/exploits/39570/
    http://packetstormsecurity.com/files/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.html
    http://seclists.org/fulldisclosure/2016/Mar/56
    http://seclists.org/fulldisclosure/2016/Mar/67
    http://www.coresecurity.com/advisories/freebsd-kernel-amd64setldt-heap-overflow
    http://www.securityfocus.com/archive/1/537812/100/0/threaded
    http://www.securityfocus.com/archive/1/537813/100/0/threaded
    http://www.securitytracker.com/id/1035309
    https://security.FreeBSD.org/advisories/FreeBSD-SA-16:15.sysarch.asc
    https://www.exploit-db.com/exploits/39570/

    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