CVSS: 8.1EPSS: 0%CPEs: 16EXPL: 1CVE-2018-18559 – kernel: Use-after-free due to race condition in AF_PACKET implementation
https://notcve.org/view.php?id=CVE-2018-18559
In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanout_add from setsockopt and bind on an AF_PACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain multithreaded case involving a packet_do_bind unregister action followed by a packet_notifier register action. Later, packet_release operates on only one of the two applicable linked lists. The attacker can achieve Program Counter control. • https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2019:0163 https://access.redhat.com/errata/RHSA-2019:0188 https://access.redhat.com/errata/RHSA-2019:1170 https://access.redhat.com/errata/RHSA-2019:1190 https://access.redhat.com/errata/RHSA-2019:3967 https://access.redhat.com/errata/RHSA-2019:4159 https://access.redhat.com/errata/RHSA-2020:0174 https://blogs.securiteam.com/index.php/archives/3731 https://access.redhat.com/security/ • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 6.5EPSS: 0%CPEs: 11EXPL: 1CVE-2018-18520 – elfutils: eu-size cannot handle recursive ar files
https://notcve.org/view.php?id=CVE-2018-18520
An Invalid Memory Address Dereference exists in the function elf_end in libelf in elfutils through v0.174. Although eu-size is intended to support ar files inside ar files, handle_ar in size.c closes the outer ar file before handling all inner entries. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted ELF file. Existe una desreferencia de dirección de memoria inválida en la función elf_end en elfutils hasta la versión v0.174. Aunque se supone que eu-size soporta archivos ar dentro de archivos ar, handle_ar en size.c cierra el archivo ar externo antes de gestionar todas la entradas internas. • http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html https://access.redhat.com/errata/RHSA-2019:2197 https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html https://sourceware.org/bugzilla/show_bug.cgi?id=23787 https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html https://usn.ubuntu.com/4012-1 https://access.redhat.com/security/cve/CVE-2018-18520 https://bugzilla.redh • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 5.5EPSS: 0%CPEs: 11EXPL: 1CVE-2018-18521 – elfutils: Divide-by-zero in arlib_add_symbols function in arlib.c
https://notcve.org/view.php?id=CVE-2018-18521
Divide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by eu-ranlib, because a zero sh_entsize is mishandled. Vulnerabilidades de división entre cero en la función arlib_add_symbols() en arlib.c en elfutils 0.174 permiten que los atacantes remotos provoquen una denegación de servicio (cierre inesperado de la aplicación) con un archivo ELF manipulado, tal y como queda demostrado con eu-ranlib. Esto se debe a que se gestiona de manera incorrecta un sh_entsize con valor cero. • http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html https://access.redhat.com/errata/RHSA-2019:2197 https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html https://sourceware.org/bugzilla/show_bug.cgi?id=23786 https://sourceware.org/ml/elfutils-devel/2018-q4/msg00055.html https://usn.ubuntu.com/4012-1 https://access.redhat.com/security/cve/CVE-2018-18521 https://bugzilla.redh • CWE-369: Divide By Zero •
CVSS: 8.6EPSS: 0%CPEs: 17EXPL: 1CVE-2018-18284 – ghostscript: 1Policy operator allows a sandbox protection bypass
https://notcve.org/view.php?id=CVE-2018-18284
Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via vectors involving the 1Policy operator. Artifex Ghostscript 9.25 y anteriores permite que los atacantes omitan un mecanismo de protección de sandbox mediante vectores relacionados con el operador 1Policy. • http://git.ghostscript.com/?p=ghostpdl.git%3Bh=8d19fdf63f91f50466b08f23e2d93d37a4c5ea0b http://www.openwall.com/lists/oss-security/2018/10/16/2 http://www.securityfocus.com/bid/107451 https://access.redhat.com/errata/RHSA-2018:3834 https://bugs.chromium.org/p/project-zero/issues/detail?id=1696 https://bugs.ghostscript.com/show_bug.cgi?id=699963 https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101 https://lists.debian.org/debian-lts-announce/2018/10/msg00013.html https:&#x •
CVSS: 7.8EPSS: 0%CPEs: 13EXPL: 0CVE-2018-18445 – kernel: Faulty computation of numberic bounds in the BPF verifier
https://notcve.org/view.php?id=CVE-2018-18445
In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts. En el kernel de Linux 4.14.x, 4.15.x, 4.16.x, 4.17.x y versiones 4.18.x anteriores a la 4.18.13, el cálculo incorrecto de enlaces numéricos en el verificador BPF permite accesos a la memoria fuera de límites debido a que adjust_scalar_min_max_vals en kernel/bpf/verifier.c gestiona de manera incorrecta los desplazamientos a la derecha de 32 bits. A security flaw was found in the Linux kernel in the adjust_scalar_min_max_vals() function in kernel/bpf/verifier.c. A faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because this function mishandles 32-bit right shifts. A local unprivileged user cannot leverage this flaw, but as a privileged user ("root") this can lead to a system panic and a denial of service or other unspecified impact. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b799207e1e1816b09e7a5920fbb2d5fcf6edd681 https://access.redhat.com/errata/RHSA-2019:0512 https://access.redhat.com/errata/RHSA-2019:0514 https://bugs.chromium.org/p/project-zero/issues/detail?id=1686 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.75 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.13 https://github.com/torvalds/linux/commit/b799207e1e1816b09e7a5920fbb2d5fcf6edd681 https:/&# • CWE-125: Out-of-bounds Read •