CVSS: 4.9EPSS: 0%CPEs: 1EXPL: 0CVE-2014-9420 – Kernel: fs: isofs: infinite loop in CE record entries
https://notcve.org/view.php?id=CVE-2014-9420
The rock_continue function in fs/isofs/rock.c in the Linux kernel through 3.18.1 does not restrict the number of Rock Ridge continuation entries, which allows local users to cause a denial of service (infinite loop, and system crash or hang) via a crafted iso9660 image. La función rock_continue en fs/isofs/rock.c en el Kernel de Linux a través de 3.18.1 no limita el número entradas de Rock Ridge, lo que permite a usuarios locales causar una denegación de servicio (vuelvas infinitas, y caída o cuelgue del sistema) a través de un imagen modificada iso9660 It was found that the Linux kernel's ISO file system implementation did not correctly limit the traversal of Rock Ridge extension Continuation Entries (CE). An attacker with physical access to the system could use this flaw to trigger an infinite loop in the kernel, resulting in a denial of service. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f54e18f1b831c92f6512d2eedb224cd63d607d3d http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.html http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.html http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html http:/ • CWE-399: Resource Management Errors CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 2.1EPSS: 0%CPEs: 434EXPL: 0CVE-2014-8133 – kernel: x86: espfix(64) bypass via set_thread_area and CLONE_SETTLS
https://notcve.org/view.php?id=CVE-2014-8133
arch/x86/kernel/tls.c in the Thread Local Storage (TLS) implementation in the Linux kernel through 3.18.1 allows local users to bypass the espfix protection mechanism, and consequently makes it easier for local users to bypass the ASLR protection mechanism, via a crafted application that makes a set_thread_area system call and later reads a 16-bit value. arch/x86/kernel/tls.c en la implementación Thread Local Storage (TLS) en el kernel de Linux hasta 3.18.1 permite a usuarios locales evadir el mecanismo de protección espfix, y como consecuencia facilita a usuarios locales evadir el mecanismo de protección ASLR, a través de una aplicación manipulada que hace una llamada del sistema set_thread_area y posteriormente lee un valor de 16 bits. It was found that the espfix functionality could be bypassed by installing a 16-bit RW data segment into GDT instead of LDT (which espfix checks), and using that segment on the stack. A local, unprivileged user could potentially use this flaw to leak kernel stack addresses. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=41bdc78544b8a93a9c6814b8bbbfef966272abbe http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html http://rhn.redhat.com/errata/RHSA-2015-1272.html http://secunia.com/advisories/62801 http://www.debian.org/security/2015/dsa-3128 http://www.mandriva.com/security/advisories?name=MDVSA-2015:058 http://www.openwall.com/lists& • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 8.4EPSS: 0%CPEs: 13EXPL: 4CVE-2014-9322 – Linux Kernel - 'BadIRET' Local Privilege Escalation
https://notcve.org/view.php?id=CVE-2014-9322
arch/x86/kernel/entry_64.S in the Linux kernel before 3.17.5 does not properly handle faults associated with the Stack Segment (SS) segment register, which allows local users to gain privileges by triggering an IRET instruction that leads to access to a GS Base address from the wrong space. arch/x86/kernel/entry_64.S en el kernel de Linux anterior a 3.17.5 no maneja correctamente los fallos asociados con el registro de segmento Stack Segment (SS), lo que permite a usuarios locales ganar privilegios mediante la provocación de una instrucción IRET que lleva al acceso a una dirección de GS Base del espacio equivocado. A flaw was found in the way the Linux kernel handled GS segment register base switching when recovering from a #SS (stack segment) fault on an erroneous return to user space. A local, unprivileged user could use this flaw to escalate their privileges on the system. • https://www.exploit-db.com/exploits/44205 https://www.exploit-db.com/exploits/36266 https://github.com/RKX1209/CVE-2014-9322 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6f442be2fb22be02cafa606f1769fa1e6f894441 http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html http://marc.info/?l= • CWE-269: Improper Privilege Management CWE-841: Improper Enforcement of Behavioral Workflow •
CVSS: 3.3EPSS: 0%CPEs: 8EXPL: 1CVE-2014-8134 – kernel: x86: espfix not working for 32-bit KVM paravirt guests
https://notcve.org/view.php?id=CVE-2014-8134
The paravirt_ops_setup function in arch/x86/kernel/kvm.c in the Linux kernel through 3.18 uses an improper paravirt_enabled setting for KVM guest kernels, which makes it easier for guest OS users to bypass the ASLR protection mechanism via a crafted application that reads a 16-bit value. La función paravirt_ops_setup en arch/x86/kernel/kvm.c en el kernel de Linux hasta 3.18 utiliza una configuración paravirt_enabled indebida para los kernels KVM invitados, lo que facilita a usuarios invitados del sistema operativo evadir el mecanismo de protección ASLR a través de una aplicación manipulada que lee un valor de 16 bits. It was found that the espfix functionality does not work for 32-bit KVM paravirtualized guests. A local, unprivileged guest user could potentially use this flaw to leak kernel stack addresses. • http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html http://people.canonical.com/~ubuntu-security/cve/2014/CVE-2014-8134.html http://rhn.redhat.com/errata/RHSA-2016-0855.html http://secunia.com/advisories/62336 http://www.oracle.com/technetwork/t •
CVSS: 6.1EPSS: 0%CPEs: 204EXPL: 0CVE-2014-8884 – kernel: usb: buffer overflow in ttusb-dec
https://notcve.org/view.php?id=CVE-2014-8884
Stack-based buffer overflow in the ttusbdecfe_dvbs_diseqc_send_master_cmd function in drivers/media/usb/ttusb-dec/ttusbdecfe.c in the Linux kernel before 3.17.4 allows local users to cause a denial of service (system crash) or possibly gain privileges via a large message length in an ioctl call. Desbordamiento de buffer basado en pila en la función ttusbdecfe_dvbs_diseqc_send_master_cmd en drivers/media/usb/ttusb-dec/ttusbdecfe.c en el kernel de Linux anterior a 3.17.4 permite a usuarios locales causar una denegación de servicio (caída del sistema) o posiblemente ganar privilegios a través de una longitud de mensaje grande en una llamada ioctl. A stack-based buffer overflow flaw was found in the TechnoTrend/Hauppauge DEC USB device driver. A local user with write access to the corresponding device could use this flaw to crash the kernel or, potentially, elevate their privileges on the system. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f2e323ec96077642d397bb1c355def536d489d16 http://rhn.redhat.com/errata/RHSA-2015-0290.html http://rhn.redhat.com/errata/RHSA-2015-0782.html http://rhn.redhat.com/errata/RHSA-2015-0864.html http://secunia.com/advisories/62305 http://www.debian.org/security/2014/dsa-3093 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4 http://www.openwall.com/lists/oss-security/2014/11/14/7 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-121: Stack-based Buffer Overflow •