CVSS: 7.8EPSS: 0%CPEs: 79EXPL: 0CVE-2022-0330 – kernel: possible privileges escalation due to missing TLB flush
https://notcve.org/view.php?id=CVE-2022-0330
A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or escalate their privileges on the system. Se ha encontrado un fallo de acceso aleatorio a la memoria en la funcionalidad del controlador del kernel de la GPU i915 de Linux en la forma en que un usuario puede ejecutar código malicioso en la GPU. Este fallo permite a un usuario local bloquear el sistema o escalar sus privilegios en el mismo A random memory access flaw was found in the Linux kernel’s GPU i915 kernel driver functionality in the way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or escalate their privileges on the system. • http://www.openwall.com/lists/oss-security/2022/11/30/1 https://bugzilla.redhat.com/show_bug.cgi?id=2042404 https://security.netapp.com/advisory/ntap-20220526-0001 https://www.openwall.com/lists/oss-security/2022/01/25/12 https://access.redhat.com/security/cve/CVE-2022-0330 • CWE-281: Improper Preservation of Permissions •
CVSS: 7.8EPSS: 0%CPEs: 56EXPL: 34CVE-2021-4034 – Red Hat Polkit Out-of-Bounds Read and Write Vulnerability
https://notcve.org/view.php?id=CVE-2021-4034
A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine. • https://github.com/dzonerzy/poc-cve-2021-4034 https://github.com/arthepsy/CVE-2021-4034 https://github.com/berdav/CVE-2021-4034 https://www.exploit-db.com/exploits/50689 https://github.com/PwnFunction/CVE-2021-4034 https://github.com/joeammond/CVE-2021-4034 https://github.com/nikaiw/CVE-2021-4034 https://github.com/ryaagard/CVE-2021-4034 https://github.com/Rvn0xsy/CVE-2021-4034 https://github.com/Ayrx/CVE-2021-4034 https://github.com/zhzyker/CVE-2021-4034& • CWE-20: Improper Input Validation CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVSS: 7.0EPSS: 0%CPEs: 55EXPL: 1CVE-2019-6454 – systemd: Insufficient input validation in bus_process_object() resulting in PID 1 crash
https://notcve.org/view.php?id=CVE-2019-6454
An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic). Se ha descubierto un problema en sd-bus en systemd 239. bus_process_object() en libsystemd/sd-bus/bus-objects.c asigna un búfer de pila de longitud variable para almacenar temporalmente la ruta de objeto de los mensajes D-Bus entrantes. Un usuario local sin privilegios puede explotar esto enviando un mensaje especialmente manipulado a PID1, provocando que el puntero de la pila salte por las páginas guard de la pila hasta una región de memoria no mapeada y desencadene una denegación de servicio (cierre inesperado del PID1 en systemd y pánico del kernel). It was discovered that systemd allocates a buffer large enough to store the path field of a dbus message without performing enough checks. • http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00070.html http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html http://www.openwall.com/lists/oss-security/2019/02/18/3 http://www.openwall.com/lists/oss-security/2019/02/19/1 http://www.openwall.com/lists/oss-security/2021/07/20/2 http://www.securityfocus.com/bid/107081 https://access.redhat.com/errata/RHSA-2019:0368 https://access.redhat.com/errata/RHSA-2019:0990 https://access • CWE-20: Improper Input Validation CWE-787: Out-of-bounds Write •
CVSS: 4.3EPSS: 0%CPEs: 27EXPL: 1CVE-2018-16866 – systemd: out-of-bounds read when parsing a crafted syslog message
https://notcve.org/view.php?id=CVE-2018-16866
An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon ':'. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable. Se ha descubierto una lectura fuera de límites en systemd-journald en la forma en la que analiza mensajes de registro que terminan con dos puntos ":". Un atacante local puede emplear este error para divulgar datos de la memoria del proceso. • http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html http://seclists.org/fulldisclosure/2019/May/21 http://www.openwall.com/lists/oss-security/2019/05/10/4 http://www.securityfocus.com/bid/106527 https://access.redhat.com/errata/RHSA-2019:2091 https://access.redhat.com/errata/RHSA-2019:3222 https://access.redhat.com/errata/RHSA-2020:0593 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16866 https://seclists.org/bugtraq/2019/May/25&# • CWE-125: Out-of-bounds Read CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 6.1EPSS: 0%CPEs: 30EXPL: 0CVE-2017-15129 – kernel: net: double-free and memory corruption in get_net_ns_by_id()
https://notcve.org/view.php?id=CVE-2017-15129
A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely. Se ha descubierto una vulnerabilidad en los nombres de espacio de red que afecta al kernel de Linux en versiones anteriores a la 4.14.11. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=21b5944350052d2583e82dd59b19a9ba94a007f0 http://seclists.org/oss-sec/2018/q1/7 http://www.securityfocus.com/bid/102485 https://access.redhat.com/errata/RHSA-2018:0654 https://access.redhat.com/errata/RHSA-2018:0676 https://access.redhat.com/errata/RHSA-2018:1062 https://access.redhat.com/errata/RHSA-2019:1946 https://access.redhat.com/security/cve/CVE-2017-15129 https://bugzilla.redhat.com/show_bug.cgi& • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •