CVSS: 5.5EPSS: 0%CPEs: 24EXPL: 1CVE-2020-27618 – glibc: iconv when processing invalid multi-byte input sequences fails to advance the input state, which could result in an infinite loop
https://notcve.org/view.php?id=CVE-2020-27618
The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228. La función iconv en la biblioteca GNU C (también se conoce como glibc o libc6) versiones 2.32 y anteriores, cuando se procesa secuencias de entrada de múltiples bytes no validas en codificaciones IBM1364, IBM1371, IBM1388, IBM1390 e IBM1399, presenta un fallo al avanzar el estado de la entrada, lo que podría conllevar a un bucle infinito en las aplicaciones, resultando en una denegación de servicio, una vulnerabilidad diferente de CVE-2016-10228 A flaw was found in glibc. If an attacker provides the iconv function with invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, IBM1399 encodings, it fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service. • https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html https://security.gentoo.org/glsa/202107-07 https://security.netapp.com/advisory/ntap-20210401-0006 https://sourceware.org/bugzilla/show_bug.cgi?id=19519#c21 https://sourceware.org/bugzilla/show_bug.cgi?id=26224 https://www.oracle.com/security-alerts/cpuapr2022.html https://www.oracle.com/security-alerts/cpujan2022.html https://access.redhat.com/security/cve/CVE-2020-27618 https://bugzilla.redhat.com/show_bug.cgi? • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 4.5EPSS: 0%CPEs: 38EXPL: 0CVE-2020-35508 – kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent
https://notcve.org/view.php?id=CVE-2020-35508
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process. Se ha encontrado una posibilidad de fallo de condición de carrera y de inicialización incorrecta del id del proceso en el manejo del id del proceso child/parent del kernel de Linux mientras se filtran los manejadores de señales. Un atacante local es capaz de abusar de este fallo para omitir unas comprobaciones y enviar cualquier señal a un proceso privilegiado. A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. • https://bugzilla.redhat.com/show_bug.cgi?id=1902724 https://github.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a948 https://security.netapp.com/advisory/ntap-20210513-0006 https://access.redhat.com/security/cve/CVE-2020-35508 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-665: Improper Initialization •
CVSS: 7.8EPSS: 0%CPEs: 28EXPL: 2CVE-2020-27815
https://notcve.org/view.php?id=CVE-2020-27815
A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se encontró un fallo en el código del sistema de archivos JFS en el Kernel de Linux que permite que un atacante local con la capacidad de establecer atributos extendidos para poner en pánico al sistema, causando corrupción de memoria o una escalada de privilegios. La mayor amenaza de esta vulnerabilidad es la confidencialidad, la integridad y la disponibilidad del sistema • http://www.openwall.com/lists/oss-security/2020/11/30/5 http://www.openwall.com/lists/oss-security/2020/12/28/1 https://bugzilla.redhat.com/show_bug.cgi?id=1897668%2C https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c61b3e4839007668360ed8b87d7da96d2e59fc6c https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html https://security.netapp.com/advisory/ntap-20210702-0004 https: • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 26EXPL: 2CVE-2020-25669
https://notcve.org/view.php?id=CVE-2020-25669
A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free. Se encontró una vulnerabilidad en el Kernel de Linux donde la función sunkbd_reinit habiendo sido programada por la función sunkbd_interrupt antes de que sunkbd fuera liberada. Aunque el puntero colgante está establecido en NULL en la función sunkbd_disconnect, todavía se presenta un alias en sunkbd_reinit causando un Uso de la Memoria Previamente Liberada • http://www.openwall.com/lists/oss-security/2020/11/05/2 http://www.openwall.com/lists/oss-security/2020/11/20/5 https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html https://security.netapp.com/advisory/ntap-20210702-0006 https://www.openwall.com/lists/oss-security/2020/11/05/2%2C https://www.openwall.com/lists/oss- • CWE-416: Use After Free •
CVSS: 7.0EPSS: 0%CPEs: 31EXPL: 2CVE-2020-25668
https://notcve.org/view.php?id=CVE-2020-25668
A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op. Se encontró un fallo en el Kernel de Linux porque el acceso a la variable global fg_console no está correctamente sincronizado, conllevando a un uso de la memoria previamente liberada en la función con_font_op • http://www.openwall.com/lists/oss-security/2020/10/30/1 http://www.openwall.com/lists/oss-security/2020/11/04/3 https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220 https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html https://security.netapp.com/advisory/ntap-20210702-0005 https:/ • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-662: Improper Synchronization •