CVSS: 7.2EPSS: 0%CPEs: 9EXPL: 1CVE-2020-14331 – kernel: kernel: buffer over write in vgacon_scroll
https://notcve.org/view.php?id=CVE-2020-14331
A flaw was found in the Linux kernel’s implementation of the invert video code on VGA consoles when a local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds write to occur. This flaw allows a local user with access to the VGA console to crash the system, potentially escalating their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en la implementación del kernel de Linux del código de video invertido en consolas VGA cuando un atacante local intenta cambiar el tamaño de la consola, llamando un ioctl VT_RESIZE, lo que causa una escritura fuera de límites. Este fallo permite a un usuario local con acceso a la consola VGA bloquear el sistema, escalando potencialmente sus privilegios en el sistema. • https://bugzilla.redhat.com/show_bug.cgi?id=1858679 https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html https://lists.openwall.net/linux-kernel/2020/07/29/234 https://www.openwall.com/lists/oss-security/2020/07/28/2 https://access.redhat.com/security/cve/CVE-2020-14331 • CWE-787: Out-of-bounds Write •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 1CVE-2020-14373 – ghostscript: use-after-free vulnerability in igc_reloc_struct_ptr() could result in DoS
https://notcve.org/view.php?id=CVE-2020-14373
A use after free was found in igc_reloc_struct_ptr() of psi/igc.c of ghostscript-9.25. A local attacker could supply a specially crafted PDF file to cause a denial of service. Se encontró un uso de la memoria previamente liberada en la función igc_reloc_struct_ptr() del archivo psi/igc.c de ghostscript-9.25. Un atacante local podría suministrar un archivo PDF especialmente diseñado para causar una denegación de servicio A use-after-free flaw was found in igc_reloc_struct_ptr() of psi/igc.c of Ghostscript-9.25. This flaw allows a local attacker to supply a specially crafted PDF file, causing a denial of service. • https://bugs.ghostscript.com/show_bug.cgi?id=702851 https://bugzilla.redhat.com/show_bug.cgi?id=1873239 https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=ece5cbbd9979cd35737b00e68267762d72feb2ea%3Bhp=1ef5f08f2c2e27efa978f0010669ff22355c385f https://access.redhat.com/security/cve/CVE-2020-14373 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2020-14346 – X.Org Server XIChangeHierarchy Integer Underflow Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-14346
A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en xorg-x11-server versiones anteriores a 1.20.9. Un subdesbordamiento de enteros en la decodificación del protocolo de extensión de entrada X en el servidor X puede conllevar a un acceso arbitrario al contenido de la memoria. • https://bugzilla.redhat.com/show_bug.cgi?id=1862246 https://lists.x.org/archives/xorg-announce/2020-August/003058.html https://security.gentoo.org/glsa/202012-01 https://usn.ubuntu.com/4488-2 https://www.zerodayinitiative.com/advisories/ZDI-20-1417 https://access.redhat.com/security/cve/CVE-2020-14346 • CWE-191: Integer Underflow (Wrap or Wraparound) •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2020-14361 – X.Org Server XkbSelectEvents Integer Underflow Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-14361
A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en X.Org Server versiones anteriores a xorg-x11-server 1.20.9. Un subdesbordamiento de enteros que conlleva a un desbordamiento del búfer de la pila puede conllevar a una vulnerabilidad de escalada de privilegios. • https://bugzilla.redhat.com/show_bug.cgi?id=1869142 https://lists.x.org/archives/xorg-announce/2020-August/003058.html https://security.gentoo.org/glsa/202012-01 https://usn.ubuntu.com/4488-2 https://www.zerodayinitiative.com/advisories/ZDI-20-1418 https://access.redhat.com/security/cve/CVE-2020-14361 • CWE-191: Integer Underflow (Wrap or Wraparound) •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2020-14362 – X.Org Server XRecordRegisterClients Integer Underflow Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-14362
A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en X.Org Server versiones anteriores a xorg-x11-server 1.20.9. Un subdesbordamiento de enteros que conlleva a un desbordamiento del búfer de la pila puede conllevar a una vulnerabilidad de escalada de privilegios. • https://bugzilla.redhat.com/show_bug.cgi?id=1869144 https://lists.x.org/archives/xorg-announce/2020-August/003058.html https://security.gentoo.org/glsa/202012-01 https://usn.ubuntu.com/4488-2 https://www.zerodayinitiative.com/advisories/ZDI-20-1419 https://access.redhat.com/security/cve/CVE-2020-14362 • CWE-191: Integer Underflow (Wrap or Wraparound) •