CVSS: 8.0EPSS: 0%CPEs: 24EXPL: 0CVE-2018-1087 – Kernel: KVM: error in exception handling leads to wrong debug stack value
https://notcve.org/view.php?id=CVE-2018-1087
kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest. kernel KVM en versiones anteriores al kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 y kernel 4.17-rc3 es vulnerable a un error en la forma en la que el hipervisor KVM del kernel de Linux gestiona las excepciones lanzadas tras una operación de cambio de pila mediante instrucciones Mov SS o Pop SS. Durante la operación de cambio de pila, el procesador no lanzó interrupciones y excepciones, sino que las lanza una vez se ha ejecutado la primera instrucción tras el cambio de pila. Un usuario invitado sin privilegios de KVM podría usar este error para provocar el cierre inesperado del guest o escalar sus privilegios en el guest. • http://www.openwall.com/lists/oss-security/2018/05/08/5 http://www.securityfocus.com/bid/104127 http://www.securitytracker.com/id/1040862 https://access.redhat.com/errata/RHSA-2018:1318 https://access.redhat.com/errata/RHSA-2018:1345 https://access.redhat.com/errata/RHSA-2018:1347 https://access.redhat.com/errata/RHSA-2018:1348 https://access.redhat.com/errata/RHSA-2018:1355 https://access.redhat.com/errata/RHSA-2018:1524 https://access.redhat.com/security/vulnerabili • CWE-250: Execution with Unnecessary Privileges •
CVSS: 7.8EPSS: 0%CPEs: 24EXPL: 5CVE-2018-8897 – Microsoft Windows POP/MOV SS Local Privilege Elevation Vulnerability
https://notcve.org/view.php?id=CVE-2018-8897
A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual (SDM) was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for #DB exceptions that are deferred by MOV SS or POP SS, as demonstrated by (for example) privilege escalation in Windows, macOS, some Xen configurations, or FreeBSD, or a Linux kernel crash. The MOV to SS and POP SS instructions inhibit interrupts (including NMIs), data breakpoints, and single step trap exceptions until the instruction boundary following the next instruction (SDM Vol. 3A; section 6.8.3). (The inhibited data breakpoints are those on memory accessed by the MOV to SS or POP to SS instruction itself.) Note that debug exceptions are not inhibited by the interrupt enable (EFLAGS.IF) system flag (SDM Vol. 3A; section 2.3). If the instruction following the MOV to SS or POP to SS instruction is an instruction like SYSCALL, SYSENTER, INT 3, etc. that transfers control to the operating system at CPL < 3, the debug exception is delivered after the transfer to CPL < 3 is complete. • https://www.exploit-db.com/exploits/44697 https://www.exploit-db.com/exploits/45024 https://github.com/can1357/CVE-2018-8897 https://github.com/nmulasmajic/CVE-2018-8897 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d8ba61ba58c88d5207c1ba2f7d9a2280e7d03be9 http://openwall.com/lists/oss-security/2018/05/08/1 http://openwall.com/lists/oss-security/2018/05/08/4 http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190921-01-debug-en http: • CWE-250: Execution with Unnecessary Privileges CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 6.5EPSS: 0%CPEs: 5EXPL: 1CVE-2018-10767 – libgxps: Stack-based buffer overflow in calling glib in gxps_images_guess_content_type of gcontenttype.c
https://notcve.org/view.php?id=CVE-2018-10767
There is a stack-based buffer over-read in calling GLib in the function gxps_images_guess_content_type of gxps-images.c in libgxps through 0.3.0 because it does not reject negative return values from a g_input_stream_read call. A crafted input will lead to a remote denial of service attack. Hay una sobrelectura de búfer basada en pila en la llamada a GLib en la función gxps_images_guess_content_type de gxps-images.c en libgxps hasta la versión 0.3.0 debido a que no rechaza los valores de retorno de una llamada g_input_stream_read. Se podría realizar un ataque de denegación de servicio remoto con una entrada especialmente manipulada. • https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2018:3140 https://access.redhat.com/errata/RHSA-2018:3505 https://bugzilla.redhat.com/show_bug.cgi?id=1575188 https://access.redhat.com/security/cve/CVE-2018-10767 https://bugzilla.redhat.com/show_bug.cgi?id=1576175 • CWE-121: Stack-based Buffer Overflow CWE-125: Out-of-bounds Read •
CVSS: 6.5EPSS: 1%CPEs: 7EXPL: 1CVE-2018-10768 – poppler: NULL pointer dereference in Annot.h:AnnotPath::getCoordsLength() allows for denial of service via crafted PDF
https://notcve.org/view.php?id=CVE-2018-10768
There is a NULL pointer dereference in the AnnotPath::getCoordsLength function in Annot.h in an Ubuntu package for Poppler 0.24.5. A crafted input will lead to a remote denial of service attack. Later Ubuntu packages such as for Poppler 0.41.0 are not affected. Hay una desreferencia de puntero NULL en la función AnnotPath::getCoordsLength en Annot.h en un paquete de Ubuntu para Poppler 0.24.5. Se podría realizar un ataque de denegación de servicio remoto con una entrada especialmente manipulada. • https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2018:3140 https://access.redhat.com/errata/RHSA-2018:3505 https://bugs.freedesktop.org/show_bug.cgi?id=106408 https://lists.debian.org/debian-lts-announce/2018/10/msg00024.html https://usn.ubuntu.com/3647-1 https://access.redhat.com/security/cve/CVE-2018-10768 https://bugzilla.redhat.com/show_bug.cgi?id=1576169 • CWE-476: NULL Pointer Dereference •
CVSS: 7.1EPSS: 7%CPEs: 12EXPL: 2CVE-2018-0494 – GNU wget - Cookie Injection
https://notcve.org/view.php?id=CVE-2018-0494
GNU Wget before 1.19.5 is prone to a cookie injection vulnerability in the resp_new function in http.c via a \r\n sequence in a continuation line. GNU Wget en versiones anteriores a la 1.19.5 es propenso a una vulnerabilidad de inyección de cookies en la función resp_new en http.c mediante una secuencia \r\n en una línea de continuación. A cookie injection flaw was found in wget. An attacker can create a malicious website which, when accessed, overrides cookies belonging to arbitrary domains. GNU Wget versions 1.7 through 1.19.4 suffer from a cookie injection vulnerability. • https://www.exploit-db.com/exploits/44601 http://www.securityfocus.com/bid/104129 http://www.securitytracker.com/id/1040838 https://access.redhat.com/errata/RHSA-2018:3052 https://git.savannah.gnu.org/cgit/wget.git/commit/?id=1fc9c95ec144499e69dc8ec76dbe07799d7d82cd https://lists.debian.org/debian-lts-announce/2018/05/msg00006.html https://lists.gnu.org/archive/html/bug-wget/2018-05/msg00020.html https://savannah.gnu.org/bugs/?53763 https://security.gentoo.org/glsa/201806-01 h • CWE-20: Improper Input Validation •