CVSS: 7.2EPSS: 0%CPEs: 9EXPL: 0CVE-2009-1895 – kernel: personality: fix PER_CLEAR_ON_SETID
https://notcve.org/view.php?id=CVE-2009-1895
The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR). El subsistema de personalidad en el Linux kernel anterior a v2.6.31-rc3 tiene establecido que PER_CLEAR_ON_SETID no borre las banderas ADDR_COMPAT_LAYOUT y MMAP_PAGE_ZERO cuando ejecuta un programa setuid o setgid, lo que facilita a usuarios locales aprovechar los detalles del uso actual de memoria para (1) llevar a cabo ataques de deferencia a punteros NULOS, (2) evitar el mecanismo de protección mmap_min_addr o (3) rechazar aleatoriamente el espacio en la capa de direcciones (ASLR). • http://blog.cr0.org/2009/06/bypassing-linux-null-pointer.html http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f9fabcb58a6d26d6efde842d1703ac7cfa9427b6 http://patchwork.kernel.org/patch/32598 http://secunia.com/advisories/35801 http://secunia.com/advisories/36045 http://secunia.com/advisories/36051 http://secunia.com/advisories/36054 http://secunia.com/advisories/36116 http://secunia.com/advisories/36131 http://secunia.com/advisories/36759 http:// • CWE-16: Configuration •
CVSS: 7.1EPSS: 0%CPEs: 15EXPL: 2CVE-2009-1891 – httpd: possible temporary DoS (CPU consumption) in mod_deflate
https://notcve.org/view.php?id=CVE-2009-1891
The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption). El módulo mod_deflate en Apache httpd v2.2.11 y anteriores comprime archivos de gran tamaño hasta finalizar incluso después de que la conexión de red asociada está cerrada, lo cual permite a atacantes remotos provocar una denegación de servicio (consumo de CPU). • http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=534712 http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00006.html http://marc.info/?l=apache-httpd-dev&m=124621326524824&w=2 http://marc.info/?l=apache-httpd-dev&m=124661528519546&w=2 http://marc.info/?l=bugtraq&m=129190899612998&w=2 http://marc.info/? • CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.1EPSS: 2%CPEs: 14EXPL: 0CVE-2009-1890 – httpd: mod_proxy reverse proxy DoS (infinite loop)
https://notcve.org/view.php?id=CVE-2009-1890
The stream_reqbody_cl function in mod_proxy_http.c in the mod_proxy module in the Apache HTTP Server before 2.3.3, when a reverse proxy is configured, does not properly handle an amount of streamed data that exceeds the Content-Length value, which allows remote attackers to cause a denial of service (CPU consumption) via crafted requests. La función stream_reqbody_cl de mod_proxy_http.c en el módulo mod_proxy del Servidor HTTP de Apache anterior a v2.3.3, cuando está configurado un proxy inverso, no maneja adecuadamente un flujo de datos que exceda el valor de Content-Length (Longitud del Contenido), esto permite a atacantes remotos provocar una denegación de servicio (consumo de la CPU) a través de una solicitud manipulada. • http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00006.html http://marc.info/?l=bugtraq&m=129190899612998&w=2 http://osvdb.org/55553 http://secunia.com/advisories/35691 http://secunia.com/advisories/35721 http://secunia.com/advisories/35793 http://secunia.com/advisories/35865 http://secunia.com/advisories/37152 http://secunia.com/advisories/37221 http://security.gentoo.org/glsa/glsa-2009 • CWE-400: Uncontrolled Resource Consumption CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 4.9EPSS: 0%CPEs: 7EXPL: 0CVE-2009-2287
https://notcve.org/view.php?id=CVE-2009-2287
The kvm_arch_vcpu_ioctl_set_sregs function in the KVM in Linux kernel 2.6 before 2.6.30, when running on x86 systems, does not validate the page table root in a KVM_SET_SREGS call, which allows local users to cause a denial of service (crash or hang) via a crafted cr3 value, which triggers a NULL pointer dereference in the gfn_to_rmap function. La funciónkvm_arch_vcpu_ioctl_set_sregs en el KVM en el Kernel Linux v2.6 anterior a v2.6.30, ejecutado sobre plataformas x86, no valida la "page table root" (raíz de tabla de páginas) en una llamada KVM_SET_SREGS, lo que permite a usuarios locales provocar una denegación de servicio (cuelgue o caída) a través de un valor cr3 manipulado, lo que lanza un deferencia a puntero NULL en la función gfn_to_rmap. • http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git%3Ba=blob%3Bf=queue-2.6.30/kvm-x86-check-for-cr3-validity-in-ioctl_set_sregs.patch%3Bh=b48a47dad2cf76358b327368f80c0805e6370c68%3Bhb=e7c45b24f298b5d9efd7d401150f64a1b51aaac4 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=59839dfff5eabca01cc4e20b45797a60a80af8cb http://secunia.com/advisories/35675 http://secunia.com/advisories/36045 http://secunia.com/advisories/36054 http://sourceforge.net/tracker/?func=detail&atid& • CWE-476: NULL Pointer Dereference •
CVSS: 5.8EPSS: 0%CPEs: 9EXPL: 2CVE-2009-1888 – Samba improper file access
https://notcve.org/view.php?id=CVE-2009-1888
The acl_group_override function in smbd/posix_acls.c in smbd in Samba 3.0.x before 3.0.35, 3.1.x and 3.2.x before 3.2.13, and 3.3.x before 3.3.6, when dos filemode is enabled, allows remote attackers to modify access control lists for files via vectors related to read access to uninitialized memory. La función acl_group_override en smbd/posix_acls.c en smbd en Samba v3.0.x anterior a v3.0.35, v3.1.x y v3.2.x anterior a v3.2.13, y v3.3.x anterior 3.3.6, cuando el modo de fichero dos está habilitado, permite a atacantes remotos modificar la lista de control de acceso para ficheros a través de vectores relacionados con acceso de lectura a memoria sin inicializar. • http://secunia.com/advisories/35539 http://secunia.com/advisories/35573 http://secunia.com/advisories/35606 http://secunia.com/advisories/36918 http://wiki.rpath.com/Advisories:rPSA-2009-0145 http://www.debian.org/security/2009/dsa-1823 http://www.mandriva.com/security/advisories?name=MDVSA-2009:196 http://www.samba.org/samba/ftp/patches/security/samba-3.0.34-CVE-2009-1888.patch http://www.samba.org/samba/ftp/patches/security/samba-3.2.12-CVE-2009-1888.patch http:&# • CWE-264: Permissions, Privileges, and Access Controls •