CVE-2022-33740
https://notcve.org/view.php?id=CVE-2022-33740
05 Jul 2022 — Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backe... • http://www.openwall.com/lists/oss-security/2022/07/05/6 • CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer •
CVE-2022-26365
https://notcve.org/view.php?id=CVE-2022-26365
05 Jul 2022 — Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backe... • http://www.openwall.com/lists/oss-security/2022/07/05/6 • CWE-401: Missing Release of Memory after Effective Lifetime •
CVE-2022-33744
https://notcve.org/view.php?id=CVE-2022-33744
05 Jul 2022 — Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' me... • http://www.openwall.com/lists/oss-security/2022/07/05/4 •
CVE-2022-34918 – kernel: heap overflow in nft_set_elem_init()
https://notcve.org/view.php?id=CVE-2022-34918
04 Jul 2022 — An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c. Se ha detectado un problema en el kernel de Linux versiones hasta 5.18.9. • https://github.com/veritas501/CVE-2022-34918 • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') CWE-1025: Comparison Using Wrong Factors •
CVE-2022-2078 – kernel: buffer overflow in nft_set_desc_concat_parse()
https://notcve.org/view.php?id=CVE-2022-2078
30 Jun 2022 — A vulnerability was found in the Linux kernel's nft_set_desc_concat_parse() function .This flaw allows an attacker to trigger a buffer overflow via nft_set_desc_concat_parse() , causing a denial of service and possibly to run code. Se ha encontrado una vulnerabilidad en la función nft_set_desc_concat_parse() del kernel de Linux. Este fallo permite a un atacante desencadenar un desbordamiento de búfer por medio de la función nft_set_desc_concat_parse() , causando una denegación de servicio y posiblemente una... • https://github.com/delsploit/CVE-2022-2078 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-121: Stack-based Buffer Overflow •
CVE-2022-1852 – kernel: NULL pointer dereference in x86_emulate_insn may lead to DoS
https://notcve.org/view.php?id=CVE-2022-1852
28 Jun 2022 — A NULL pointer dereference flaw was found in the Linux kernel’s KVM module, which can lead to a denial of service in the x86_emulate_insn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal instruction in guest in the Intel CPU. Se ha encontrado un fallo de desreferencia de puntero NULL en el módulo KVM del kernel de Linux, que puede conllevar a una denegación de servicio en el archivo x86_emulate_insn en arch/x86/kvm/emulate.c. Este fallo es producido mientras es ejecutada una instrucció... • https://bugzilla.redhat.com/show_bug.cgi?id=2089815 • CWE-476: NULL Pointer Dereference •
CVE-2022-34494
https://notcve.org/view.php?id=CVE-2022-34494
26 Jun 2022 — rpmsg_virtio_add_ctrl_dev in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free. La función rpmsg_virtio_add_ctrl_dev en el archivo drivers/rpmsg/virtio_rpmsg_bus.c en el kernel de Linux versiones anteriores a 5.18.4, presenta una doble liberación • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4 • CWE-415: Double Free •
CVE-2022-34495
https://notcve.org/view.php?id=CVE-2022-34495
26 Jun 2022 — rpmsg_probe in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free. La función rpmsg_probe en el archivo drivers/rpmsg/virtio_rpmsg_bus.c en el kernel de Linux versiones anteriores a 5.18.4, presenta una doble liberación • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4 • CWE-415: Double Free •
CVE-2022-1729 – kernel: race condition in perf_event_open leads to privilege escalation
https://notcve.org/view.php?id=CVE-2022-1729
22 Jun 2022 — A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged user to gain root privileges. The bug allows to build several exploit primitives such as kernel address information leak, arbitrary execution, etc. Se ha encontrado una condición de carrera en el kernel de Linux en la función perf_event_open() que puede ser explotada por un usuario no privilegiado para conseguir privilegios de root. El bug permite construir varias primitivas de explotación como un filt... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3ac6487e584a1eb54071dbe1212e05b884136704 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-366: Race Condition within a Thread •
CVE-2022-33981
https://notcve.org/view.php?id=CVE-2022-33981
18 Jun 2022 — drivers/block/floppy.c in the Linux kernel before 5.17.6 is vulnerable to a denial of service, because of a concurrency use-after-free flaw after deallocating raw_cmd in the raw_cmd_ioctl function. El archivo drivers/block/floppy.c en el kernel de Linux versiones anteriores a 5.17.6, es vulnerable a una denegación de servicio, debido a un fallo de uso de concurrencia después de la asignación de raw_cmd en la función raw_cmd_ioctl • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.6 • CWE-416: Use After Free •