CVSS: 7.8EPSS: 0%CPEs: 12EXPL: 0CVE-2023-31248 – Linux Kernel nftables Use-After-Free Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2023-31248
Linux Kernel nftables Use-After-Free Local Privilege Escalation Vulnerability; `nft_chain_lookup_byid()` failed to check whether a chain was active and CAP_NET_ADMIN is in any user or network namespace Vulnerabilidad de Escalada de Privilegios Locales de Use-After-Free de Linux nftables; 'nft_chain_lookup_byid()' no pudo comprobar si una cadena estaba activa y CAP_NET_ADMIN está en cualquier espacio de nombres de usuario o red A use-after-free flaw was found in the Linux kernel's Netfilter module in net/netfilter/nf_tables_api.c in nft_chain_lookup_byid. This flaw allows a local attacker to cause a local privilege escalation issue due to a missing cleanup. 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 handling of nft_chains. The issue results from the lack of validating the status of a chain while processing lookup on the chain. • http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html http://www.openwall.com/lists/oss-security/2023/07/05/2 https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGZC5XOANA75OJ4XARBBXYSLDKUIJI5E https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.or • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 0CVE-2023-3389 – Use after free in io_uring in the Linux Kernel
https://notcve.org/view.php?id=CVE-2023-3389
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable). Una vulnerabilidad de use-after-free en el subsistema de io_uring del kernel de Linux puede ser explotada para lograr la escalada de privilegios locales. Ejecutar una solicitud de io_uring cancelar sondeo con un tiempo de espera vinculado puede provocar una UAF en un hrtimer. Recomendamos actualizar al commit anterior ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 para 5.10 stable y 0e388fce7aec40992eadee654193cad345d62663 para 5.15 stable). • http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=4716c73b188566865bdd79c3a6709696a224ac04 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=0e388fce7aec40992eadee654193cad345d62663 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef7dfac51d8ed961b742218f526bd589f3900a59 https://kernel.dance/0e388fce7aec40992eade • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 24EXPL: 2CVE-2023-35788 – kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()
https://notcve.org/view.php?id=CVE-2023-35788
An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7. It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets. This may result in denial of service or privilege escalation. Se descubrió un problema en fl_set_geneve_opt en net/sched/cls_flower.c en el kernel de Linux antes de 6.3.7. Permite una escritura fuera de los límites en el código flower classifier a través de paquetes TCA_FLOWER_KEY_ENC_OPTS_GENEVE. • http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html http://www.openwall.com/lists/oss-security/2023/06/17/1 https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.7 https://git.kernel.org/linus/4d56304e5827c8cc8cc18c75343d283af7c4825c https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html https://security.netapp.com/advisory/ntap-20230714-0002 https://www.debian& • CWE-787: Out-of-bounds Write •
CVSS: 10.0EPSS: 0%CPEs: 7EXPL: 1CVE-2023-1523
https://notcve.org/view.php?id=CVE-2023-1523
Using the TIOCLINUX ioctl request, a malicious snap could inject contents into the input of the controlling terminal which could allow it to cause arbitrary commands to be executed outside of the snap sandbox after the snap exits. Graphical terminal emulators like xterm, gnome-terminal and others are not affected - this can only be exploited when snaps are run on a virtual console. Utilizando la petición IOCTL de TIOCLINUX, un snap malicoso podría inyectar contenido en la entrada del terminal de control, lo que podría permitir que se ejecutaran comandos arbitrarios fuera del sandbox del snap después de que éste saliera. Los emuladores gráficos de terminal como xterm, gnome-terminal y otros no se ven afectados. Esto sólo puede ser explotado cuando los snaps se ejecutan en una consola virtual. • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1523 https://github.com/snapcore/snapd/pull/12849 https://marc.info/?l=oss-security&m=167879021709955&w=2 https://ubuntu.com/security/notices/USN-6125-1 • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2023-1786 – sensitive data exposure in cloud-init logs
https://notcve.org/view.php?id=CVE-2023-1786
Sensitive data could be exposed in logs of cloud-init before version 23.1.2. An attacker could use this information to find hashed passwords and possibly escalate their privilege. A vulnerability was found in cloud-init. With this flaw, exposure of sensitive data is possible in world-readable cloud-init logs. This flaw allows an attacker to use this information to find hashed passwords and possibly escalate their privilege. • https://bugs.launchpad.net/cloud-init/+bug/2013967 https://github.com/canonical/cloud-init/commit/a378b7e4f47375458651c0972e7cd813f6fe0a6b https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ATBJSXPL2IOAD2LDQRKWPLIC7QXS44GZ https://ubuntu.com/security/notices/USN-6042-1 https://access.redhat.com/security/cve/CVE-2023-1786 https://bugzilla.redhat.com/show_bug.cgi?id=2190079 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-532: Insertion of Sensitive Information into Log File •