CVSS: 3.3EPSS: 0%CPEs: 1EXPL: 0CVE-2022-32296
https://notcve.org/view.php?id=CVE-2022-32296
The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 ("Double-Hash Port Selection Algorithm") of RFC 6056. El kernel de Linux anterior a la versión 5.17.9 permite a los servidores TCP identificar a los clientes observando qué puertos de origen se utilizan. Esto ocurre debido al uso del Algoritmo 4 ("Double-Hash Port Selection Algorithm") del RFC 6056 • https://arxiv.org/abs/2209.12993 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.9 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c2c8f03a5ab7cb04ec64724d7d176d00bcc91e5 https://github.com/0xkol/rfc6056-device-tracker https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html https://www.debian.org/security/2022/dsa-5173 • CWE-330: Use of Insufficiently Random Values •
CVSS: 8.8EPSS: 0%CPEs: 22EXPL: 6CVE-2022-32250 – Linux Kernel nf_tables_expr_destroy Use-After-Free Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2022-32250
net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free. El archivo net/netfilter/nf_tables_api.c en el kernel de Linux versiones hasta 5.18.1, permite a un usuario local (capaz de crear espacios de nombres de usuario/red) escalar privilegios a root porque una comprobación incorrecta de NFT_STATEFUL_EXPR conlleva a un uso de memoria previamente liberada A use-after-free vulnerability was found in the Linux kernel's Netfilter subsystem in net/netfilter/nf_tables_api.c. This flaw allows a local attacker with user access to cause a privilege escalation issue. This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the nf_tables_expr_destroy method. • https://github.com/theori-io/CVE-2022-32250-exploit https://github.com/ysanatomic/CVE-2022-32250-LPE https://github.com/Kristal-g/CVE-2022-32250 http://www.openwall.com/lists/oss-security/2022/06/03/1 http://www.openwall.com/lists/oss-security/2022/06/04/1 http://www.openwall.com/lists/oss-security/2022/06/20/1 http://www.openwall.com/lists/oss-security/2022/07/03/5 http://www.openwall.com/lists/oss-security/2022/07/03/6 http://www.openwall&# • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0CVE-2022-1943
https://notcve.org/view.php?id=CVE-2022-1943
A flaw out of bounds memory write in the Linux kernel UDF file system functionality was found in the way user triggers some file operation which triggers udf_write_fi(). A local user could use this flaw to crash the system or potentially Se ha encontrado un defecto de escritura en memoria fuera de límites en la funcionalidad del sistema de archivos UDF del kernel de Linux en la forma en que el usuario desencadena alguna operación de archivo que desencadena udf_write_fi(). Un usuario local podría usar este defecto para bloquear el sistema o potencialmente • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c1ad35dd0548ce947d97aaf92f7f2f9a202951cf • CWE-787: Out-of-bounds Write •
CVSS: 6.9EPSS: 0%CPEs: 6EXPL: 0CVE-2022-1789 – kernel: KVM: NULL pointer dereference in kvm_mmu_invpcid_gva
https://notcve.org/view.php?id=CVE-2022-1789
With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference. Con shadow paging habilitada, la instrucción INVPCID resulta en una llamada a kvm_mmu_invpcid_gva. Si INVPCID es ejecutado con CR0.PG=0, la llamada de retorno invlpg no es establecida y el resultado es una desreferencia de puntero NULL A flaw was found in KVM. With shadow paging enabled if INVPCID is executed with CR0.PG=0, the invlpg callback is not set, and the result is a NULL pointer dereference. • https://bugzilla.redhat.com/show_bug.cgi?id=1832397 https://francozappa.github.io/about-bias https://kb.cert.org/vuls/id/647177 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6JP355XFVAB33X4BNO3ERVTURFYEDB7 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IBUOQTNTQ4ZCXHOCNKYIL2ZUIAZ675RD https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KCEAPIVPRTJHKPF2A2HVF5XHD5XJT3MN https://www.debian.org/security • CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 11EXPL: 0CVE-2022-1786
https://notcve.org/view.php?id=CVE-2022-1786
A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system. Se encontró un fallo de uso de memoria previamente liberada en el subsistema io_uring del kernel de Linux en la forma en que un usuario configura un anillo con IORING_SETUP_IOPOLL con más de una tarea completando envíos en este anillo. Este fallo permite a un usuario local colapsar o escalar sus privilegios en el sistema • https://bugzilla.redhat.com/show_bug.cgi?id=2087760 https://security.netapp.com/advisory/ntap-20220722-0001 https://www.debian.org/security/2022/dsa-5161 • CWE-416: Use After Free CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •