CVSS: 7.8EPSS: 0%CPEs: 51EXPL: 0CVE-2023-3972 – Insights-client: unsafe handling of temporary files and directories
https://notcve.org/view.php?id=CVE-2023-3972
A vulnerability was found in insights-client. This security issue occurs because of insecure file operations or unsafe handling of temporary files and directories that lead to local privilege escalation. Before the insights-client has been registered on the system by root, an unprivileged local user or attacker could create the /var/tmp/insights-client directory (owning the directory with read, write, and execute permissions) on the system. After the insights-client is registered by root, an attacker could then control the directory content that insights are using by putting malicious scripts into it and executing arbitrary code as root (trivially bypassing SELinux protections because insights processes are allowed to disable SELinux system-wide). Se encontró una vulnerabilidad en insights-client. • https://access.redhat.com/errata/RHSA-2023:6264 https://access.redhat.com/errata/RHSA-2023:6282 https://access.redhat.com/errata/RHSA-2023:6283 https://access.redhat.com/errata/RHSA-2023:6284 https://access.redhat.com/errata/RHSA-2023:6795 https://access.redhat.com/errata/RHSA-2023:6796 https://access.redhat.com/errata/RHSA-2023:6798 https://access.redhat.com/errata/RHSA-2023:6811 https://access.redhat.com/security/cve/CVE-2023-3972 https://bugzilla.redhat.com/show • CWE-379: Creation of Temporary File in Directory with Insecure Permissions CWE-668: Exposure of Resource to Wrong Sphere •
CVSS: 7.8EPSS: 3%CPEs: 18EXPL: 18CVE-2023-4911 – GNU C Library Buffer Overflow Vulnerability
https://notcve.org/view.php?id=CVE-2023-4911
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges. Se descubrió un desbordamiento del búfer en el cargador dinámico ld.so de la librería GNU C mientras se procesaba la variable de entorno GLIBC_TUNABLES. Este problema podría permitir que un atacante local utilice variables de entorno GLIBC_TUNABLES manipuladas con fines malintencionados al iniciar archivos binarios con permiso SUID para ejecutar código con privilegios elevados. Dubbed Looney Tunables, Qualys discovered a buffer overflow vulnerability in the glibc dynamic loader's processing of the GLIBC_TUNABLES environment variable. • https://github.com/leesh3288/CVE-2023-4911 https://github.com/ruycr4ft/CVE-2023-4911 https://github.com/guffre/CVE-2023-4911 https://github.com/NishanthAnand21/CVE-2023-4911-PoC https://github.com/RickdeJager/CVE-2023-4911 https://github.com/hadrian3689/looney-tunables-CVE-2023-4911 https://github.com/Green-Avocado/CVE-2023-4911 https://github.com/xiaoQ1z/CVE-2023-4911 https://github.com/Diego-AltF4/CVE-2023-4911 https://github.com/KernelKrise/CVE-2023-4911 https:/&# • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 7.5EPSS: 0%CPEs: 31EXPL: 0CVE-2023-5157 – Mariadb: node crashes with transport endpoint is not connected mysqld got signal 6
https://notcve.org/view.php?id=CVE-2023-5157
A vulnerability was found in MariaDB. An OpenVAS port scan on ports 3306 and 4567 allows a malicious remote client to cause a denial of service. Se encontró una vulnerabilidad en MariaDB. Un escaneo de puertos OpenVAS en los puertos 3306 y 4567 permite que un cliente remoto malicioso provoque una denegación de servicio. • https://access.redhat.com/errata/RHSA-2023:5683 https://access.redhat.com/errata/RHSA-2023:5684 https://access.redhat.com/errata/RHSA-2023:6821 https://access.redhat.com/errata/RHSA-2023:6822 https://access.redhat.com/errata/RHSA-2023:6883 https://access.redhat.com/errata/RHSA-2023:7633 https://access.redhat.com/security/cve/CVE-2023-5157 https://bugzilla.redhat.com/show_bug.cgi?id=2240246 • CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.8EPSS: 0%CPEs: 35EXPL: 0CVE-2023-0494 – X.Org Server DeepCopyPointerClasses Use-After-Free Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2023-0494
A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions. This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. 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 DeepCopyPointerClasses function. • https://bugzilla.redhat.com/show_bug.cgi?id=2165995 https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec https://lists.x.org/archives/xorg-announce/2023-February/003320.html https://security.gentoo.org/glsa/202305-30 https://access.redhat.com/security/cve/CVE-2023-0494 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 21EXPL: 0CVE-2021-3659 – kernel: NULL pointer dereference in llsec_key_alloc() in net/mac802154/llsec.c
https://notcve.org/view.php?id=CVE-2021-3659
A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo de desreferencia de puntero NULL en el subsistema de red inalámbrica IEEE versión 802.15.4 del kernel de Linux en la forma en que el usuario cierra la conexión LR-WPAN. Este fallo permite a un usuario local bloquear el sistema. • https://access.redhat.com/security/cve/CVE-2021-3659 https://bugzilla.redhat.com/show_bug.cgi?id=1975949 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1165affd484889d4986cf3b724318935a0b120d8 • CWE-252: Unchecked Return Value CWE-476: NULL Pointer Dereference •