CVSS: 7.8EPSS: 0%CPEs: 19EXPL: 0CVE-2020-36385 – kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free
https://notcve.org/view.php?id=CVE-2020-36385
An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c. Se ha detectado un problema en el kernel de Linux versiones anteriores a 5.10. El archivo drivers/infiniband/core/ucma.c, presenta un uso de la memoria previamente liberada porque el ctx es alcanzado por medio de la función ctx_list en algunas situaciones donde la función ucma_migrate_id en que la función ucma_close, es llamada también se conoce como CID-f5449e74802c An issue was discovered in the Linux kernels Userspace Connection Manager Access for RDMA. This could allow a local attacker to crash the system, corrupt memory or escalate privileges. • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5449e74802c1112dea984aec8af7a33c4516af1 https://security.netapp.com/advisory/ntap-20210720-0004 https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2 https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6 https://www.starwindsoftware.com/security/sw-20220802-0002 https://access.redhat.com/security/cve/CVE-2020-36385 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-3428 – kernel: integer overflow in ext4_es_cache_extent
https://notcve.org/view.php?id=CVE-2021-3428
A flaw was found in the Linux kernel. A denial of service problem is identified if an extent tree is corrupted in a crafted ext4 filesystem in fs/ext4/extents.c in ext4_es_cache_extent. Fabricating an integer overflow, A local attacker with a special user privilege may cause a system crash problem which can lead to an availability threat. Se ha encontrado un fallo en el kernel de Linux. Es identificado un problema de denegación de servicio si es corrompido un árbol de extensiones en un sistema de archivos ext4 diseñado en el archivo fs/ext4/extents.c en la función ext4_es_cache_extent. • https://bugzilla.redhat.com/show_bug.cgi?id=1972621 https://ubuntu.com/security/CVE-2021-3428 https://www.openwall.com/lists/oss-security/2021/03/17/1 https://access.redhat.com/security/cve/CVE-2021-3428 https://bugzilla.redhat.com/show_bug.cgi?id=1936786 • CWE-190: Integer Overflow or Wraparound •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2020-10774 – kernel: possibility of memory disclosure when reading the file /proc/sys/kernel/rh_features
https://notcve.org/view.php?id=CVE-2020-10774
A memory disclosure flaw was found in the Linux kernel's versions before 4.18.0-193.el8 in the sysctl subsystem when reading the /proc/sys/kernel/rh_features file. This flaw allows a local user to read uninitialized values from the kernel memory. The highest threat from this vulnerability is to confidentiality. Se encontró un fallo de divulgación de memoria en el kernel de Linux versiones anteriores a 4.18.0-193.el8 en el subsistema sysctl al leer el archivo /proc/sys/kernel/rh_features. Este fallo permite a un usuario local leer valores no inicializados de la memoria del kernel. • https://bugzilla.redhat.com/show_bug.cgi?id=1846964 https://access.redhat.com/security/cve/CVE-2020-10774 • CWE-805: Buffer Access with Incorrect Length Value CWE-909: Missing Initialization of Resource •
CVSS: 5.5EPSS: 0%CPEs: 24EXPL: 2CVE-2020-25673
https://notcve.org/view.php?id=CVE-2020-25673
A vulnerability was found in Linux kernel where non-blocking socket in llcp_sock_connect() leads to leak and eventually hanging-up the system. Se encontró una vulnerabilidad en el kernel de Linux en la que el socket non-blocking en la función llcp_sock_connect() conduce a un filtrado de información y eventualmente bloquea el sistema • http://www.openwall.com/lists/oss-security/2020/11/01/1 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PW3OASG7OEMHANDWBM5US5WKTOC76KMH https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTVACC6PGS6OSD3EYY7FZUAZT2EUMFH5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEIEGQXUW37YHZ5MTAZTDCIMHUN26NJS https://security.netapp.com/advisory/ntap-20210702-0008 https://www.openwall.com/lists/oss-security/2020 • CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.8EPSS: 0%CPEs: 31EXPL: 2CVE-2020-25671
https://notcve.org/view.php?id=CVE-2020-25671
A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after-free which might lead to privilege escalations. Se encontró una vulnerabilidad en el Kernel de Linux, donde un filtrado de refcount en la función llcp_sock_connect() causa un uso de la memoria previamente liberada que podría conllevar a una escaladas de privilegios • http://www.openwall.com/lists/oss-security/2020/11/01/1 https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PW3OASG7OEMHANDWBM5US5WKTOC76KMH https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTVACC6PGS6OSD3EYY7FZUAZT2EUMFH5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.or • CWE-416: Use After Free •