CVSS: 7.9EPSS: 0%CPEs: 20EXPL: 4CVE-2012-0217 – FreeBSD Intel SYSRET Privilege Escalation
https://notcve.org/view.php?id=CVE-2012-0217
The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix XenServer 6.0.2 and earlier and other products; Oracle Solaris 11 and earlier; illumos before r13724; Joyent SmartOS before 20120614T184600Z; FreeBSD before 9.0-RELEASE-p3; NetBSD 6.0 Beta and earlier; Microsoft Windows Server 2008 R2 and R2 SP1 and Windows 7 Gold and SP1; and possibly other operating systems, when running on an Intel processor, incorrectly uses the sysret path in cases where a certain address is not a canonical address, which allows local users to gain privileges via a crafted application. NOTE: because this issue is due to incorrect use of the Intel specification, it should have been split into separate identifiers; however, there was some value in preserving the original mapping of the multi-codebase coordinated-disclosure effort to a single identifier. El modo de usuario Scheduler en el núcleo en Microsoft Windows Server v2008 R2 y R2 SP1 y Windows v7 Gold y SP1 sobre la plataforma x64 no maneja adecuadamente solicitudes del sistema, lo que permite a usuarios locales obtener privilegios a través de una aplicación modificada, también conocida como "vulnerabilidad de corrupción de memoria de modo de usuario Scheduler". It was found that the Xen hypervisor implementation as shipped with Red Hat Enterprise Linux 5 did not properly restrict the syscall return addresses in the sysret return path to canonical addresses. An unprivileged user in a 64-bit para-virtualized guest, that is running on a 64-bit host that has an Intel CPU, could use this flaw to crash the host or, potentially, escalate their privileges, allowing them to execute arbitrary code at the hypervisor level. • https://www.exploit-db.com/exploits/46508 https://www.exploit-db.com/exploits/28718 https://www.exploit-db.com/exploits/20861 http://blog.illumos.org/2012/06/14/illumos-vulnerability-patched http://blog.xen.org/index.php/2012/06/13/the-intel-sysret-privilege-escalation http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2012-003.txt.asc http://lists.xen.org/archives/html/xen-announce/2012-06/msg00001.html http://lists.xen.org/archives/html/xen-devel/2012-06 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 9.3EPSS: 1%CPEs: 40EXPL: 0CVE-2011-2895 – BSD compress LZW decoder buffer overflow
https://notcve.org/view.php?id=CVE-2011-2895
The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3BSD, as used in zopen.c in OpenBSD before 3.8, FreeBSD, NetBSD 4.0.x and 5.0.x before 5.0.3 and 5.1.x before 5.1.1, FreeType 2.1.9, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows context-dependent attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2896. El descompresor en LZW en (1) la función BufCompressedFill en fontfile/decompress.c en X.Org libXfont antes de la versión v1.4.4 y (2) compress/compress.c en 4.3BSD, tal y como se utiliza en zopen.c en OpenBSD antes de la versión v3.8, FreeBSD, NetBSD, FreeType v2.1.9, y otros productos, no controla correctamente las palabras de código ausentes de la tabla de descompresión, lo que permite provocar un bucle infinito o un desbordamiento de búfer basado en memoria dinámica (heap) a atacantes (dependiendo del contexto) y posiblemente ejecutar código de su elección a través de un flujo comprimido debidamente modificado. Se trata de un problema relacionado con los CVE-2006-1168 y CVE-2011 2896. • http://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d11ee5886e9d9ec610051a206b135a4cdc1e09a0 http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2011-007.txt.asc http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html http://lists.apple.com/archives/security-announce/2012/May/msg00001.html http://lists.apple.com/archives/security-announce/2015/Dec/msg00000.html http://lists.apple.com/archives/security-announce/2015/Dec/msg00001.html http://lists.apple.com/archives/secur • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 3.3EPSS: 0%CPEs: 20EXPL: 3CVE-2011-1920
https://notcve.org/view.php?id=CVE-2011-1920
The make include files in NetBSD before 1.6.2, as used in pmake 1.111 and other products, allow local users to overwrite arbitrary files via a symlink attack on a /tmp/_depend##### temporary file, related to (1) bsd.lib.mk and (2) bsd.prog.mk. El "make" incluye ficheros en NetBSD anterior a v1.6.2 usados en pmake v1.111 y otros productos, permite a usuarios locales sobreescribir ficheros de su elección a través de un ataque de enlace simbólico sobre un archivo temporal /tmp/_depend#####, relacionado con (1) bsd.lib.mk y (2) bsd.prog.mk. • http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626673 http://cvsweb.netbsd.org/bsdweb.cgi/src/share/mk/bsd.lib.mk.diff?r1=1.239&r2=1.240&f=h http://cvsweb.netbsd.org/bsdweb.cgi/src/share/mk/bsd.prog.mk.diff?r1=1.192&r2=1.193&f=h http://openwall.com/lists/oss-security/2011/05/16/2 http://openwall.com/lists/oss-security/2011/05/16/8 http://www.securityfocus.com/bid/47878 https://bugzilla.redhat.com/show_bug.cgi?id=705090 https://bugzilla • CWE-59: Improper Link Resolution Before File Access ('Link Following') •
CVSS: 4.9EPSS: 0%CPEs: 42EXPL: 0CVE-2010-2530
https://notcve.org/view.php?id=CVE-2010-2530
Multiple integer signedness errors in smb_subr.c in the netsmb module in the kernel in NetBSD 5.0.2 and earlier, FreeBSD, and Apple Mac OS X allow local users to cause a denial of service (panic) via a negative size value in a /dev/nsmb ioctl operation, as demonstrated by a (1) SMBIOC_LOOKUP or (2) SMBIOC_OPENSESSION ioctl call. Múltiples errores de signo entero en smb_subr.c en el módulo netsmb en el kernel de NetBSD v5.0.2 y versiones anteriores, FreeBSD y Mac OS X permite a usuarios locales causar una denegación de servicio (pánico) a través de un valor negativo en una operación ioctl /dev/nsmb, como se demuestra por una llamada ioctl a (1) SMBIOC_LOOKUP o (2) SMBIOC_OPENSESSION. • http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/netsmb/smb_subr.c.diff?r1=1.34&r2=1.35&only_with_tag=MAIN&f=h http://www.openwall.com/lists/oss-security/2010/07/12/6 http://www.openwall.com/lists/oss-security/2010/07/16/2 http://www.securityfocus.com/bid/41557 • CWE-189: Numeric Errors •
CVSS: 4.6EPSS: 0%CPEs: 30EXPL: 1CVE-2009-2793 – NetBSD 5.0.1 - 'IRET' General Protection Fault Handling Privilege Escalation
https://notcve.org/view.php?id=CVE-2009-2793
The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vectors related to a tempEIP pseudocode variable that is outside of the code-segment limits. El kernel en NetBSD, posiblemente 5.0.1 y anteriores, en plataformas x86 no gestiona adecuadamente el fallo de preasignación de la instrucción "iret", lo que permitiría a usuarios locales conseguir privilegios a través de vectores relacionados con la variable de pseudocódigo tempEIP que esta fuera de los limites de segmento de código. • https://www.exploit-db.com/exploits/33229 http://www.securityfocus.com/archive/1/506531/100/0/threaded • CWE-264: Permissions, Privileges, and Access Controls •