CVSS: 7.8EPSS: 0%CPEs: 12EXPL: 1CVE-2020-13974 – kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c
https://notcve.org/view.php?id=CVE-2020-13974
An issue was discovered in the Linux kernel 4.4 through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case. Se detectó un problema en el kernel de Linux versión 4.4 hasta la versión 5.7.1. En el archivo drivers/tty/vt/keyboard.c presenta un desbordamiento de enteros si se llama a la función k_ascii varias veces seguidas, también se conoce como CID-b86dab054059. NOTA: Los miembros de la comunidad argumentan que el desbordamiento de números enteros no conduce a un problema de seguridad en este caso A flaw integer overflow in the Linux kernel's virtual terminal keyboard driver was found in the way the user sends some specific keyboard code multiple times. • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=dad0bf9ce93fa40b667eccd3306783f4db4b932b https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86dab054059b970111b5516ae548efaae5b3aae https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html https://lkml.org/lkml/2020/3/22/482 https://usn.u • CWE-190: Integer Overflow or Wraparound •
CVSS: 6.5EPSS: 0%CPEs: 7EXPL: 2CVE-2020-12049 – dbus: denial of service via file descriptor leak
https://notcve.org/view.php?id=CVE-2020-12049
An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients. Se detectó un problema en dbus versiones posteriores a 1.3.0 e incluyéndola y anteriores a 1.12.18. El DBusServer en libdbus, como es usado en dbus-daemon, filtra los descriptores de archivo cuando un mensaje excede el límite del descriptor de archivo por mensaje. • http://packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.html http://www.openwall.com/lists/oss-security/2020/06/04/3 https://gitlab.freedesktop.org/dbus/dbus/-/issues/294 https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30 https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18 https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16 https://security.gentoo.org/glsa/202007-46 https://securitylab.github& • CWE-400: Uncontrolled Resource Consumption CWE-404: Improper Resource Shutdown or Release •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 1CVE-2020-13904
https://notcve.org/view.php?id=CVE-2020-13904
FFmpeg 2.8 and 4.2.3 has a use-after-free via a crafted EXTINF duration in an m3u8 file because parse_playlist in libavformat/hls.c frees a pointer, and later that pointer is accessed in av_probe_input_format3 in libavformat/format.c. FFmpeg versión 2.8 y versión 4.2.3, presenta un uso de la memoria previamente liberada por medio de una duración EXTINF diseñada en un archivo m3u8 porque la función parse_playlist en la biblioteca libavformat/hls.c libera un puntero, y luego este puntero es accedido en la función av_probe_input_format3 en la biblioteca libavformat/format.c • https://github.com/FFmpeg/FFmpeg/commit/6959358683c7533f586c07a766acc5fe9544d8b2 https://lists.debian.org/debian-lts-announce/2020/07/msg00022.html https://patchwork.ffmpeg.org/project/ffmpeg/patch/20200529033905.41926-1-lq%40chinaffmpeg.org https://security.gentoo.org/glsa/202007-58 https://trac.ffmpeg.org/ticket/8673 https://usn.ubuntu.com/4431-1 https://www.debian.org/security/2020/dsa-4722 • CWE-416: Use After Free •
CVSS: 7.5EPSS: 0%CPEs: 7EXPL: 0CVE-2020-13881
https://notcve.org/view.php?id=CVE-2020-13881
In support.c in pam_tacplus 1.3.8 through 1.5.1, the TACACS+ shared secret gets logged via syslog if the DEBUG loglevel and journald are used. En el archivo support.c en pam_tacplus versiones 1.3.8 hasta 1.5.1, el secreto compartido TACACS+ es registrado por medio de syslog si el nivel de registro DEBUG y journald son usados • http://www.openwall.com/lists/oss-security/2020/06/08/1 https://github.com/kravietz/pam_tacplus/commit/4a9852c31c2fd0c0e72fbb689a586aabcfb11cb0 https://github.com/kravietz/pam_tacplus/issues/149 https://lists.debian.org/debian-lts-announce/2020/06/msg00007.html https://lists.debian.org/debian-lts-announce/2021/08/msg00006.html https://usn.ubuntu.com/4521-1 https://www.arista.com/en/support/advisories-notices/security-advisories/11705-security-advisory-50 • CWE-532: Insertion of Sensitive Information into Log File •
CVSS: 6.8EPSS: 0%CPEs: 7EXPL: 0CVE-2020-13765 – QEMU: loader: OOB access while loading registered ROM may lead to code execution
https://notcve.org/view.php?id=CVE-2020-13765
rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation. La función rom_copy() en el archivo hw/core/loader.c en QEMU versión 4.0 y versión 4.1.0, no comprueba la relación entre dos direcciones, lo que permite a atacantes activar una operación de copia de memoria no válida An out-of-bound write access flaw was found in the way QEMU loads ROM contents at boot time. This flaw occurs in the rom_copy() routine while loading the contents of a 32-bit -kernel image into memory. Running an untrusted -kernel image may load contents at arbitrary memory locations, potentially leading to code execution with the privileges of the QEMU process. • https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e423455c4f23a1a828901c78fe6d03b7dde79319 https://github.com/qemu/qemu/commit/4f1c6cb2f9afafda05eab150fd2bd284edce6676 https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html https://security.netapp.com/advisory/ntap-20200619-0006 https://usn.ubuntu.com/4467-1 https://www.openwall.com/lists/oss-security/2020/06/03/6 https://access.redhat.com/security/cve/CVE-2020-13765 • CWE-787: Out-of-bounds Write •