Alertas de Seguridad de la Información

M Alto vulnerabilidad

03/09/2026

[CVE-2026-80737] In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: synchronize…

In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: synchronize DMA teardown dmaengine_terminate_all() does not wait for a running callback, so the TX callback can still touch the TX buffer after it is freed. The RX poll timer reads the RX buffers without the port lock. Switch to dmaengine_terminate_sync() and delete the RX timer before freeing the buffers.

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

03/09/2026

[CVE-2026-80738] In the Linux kernel, the following vulnerability has been resolved: bpf: Check sk_state before sk_p…

In the Linux kernel, the following vulnerability has been resolved: bpf: Check sk_state before sk_protocol in bpf_tcp_*_syncookie bpf_tcp_gen_syncookie and bpf_tcp_check_syncookie accept a socket pointer 'sk' with argument type ARG_PTR_TO_BTF_ID_SOCK_COMMON. However, they access sk->sk_protocol without validating whether 'sk' represents a full socket. Fix this issue by checking sk->sk_state != …

nvdaltovulnerabilidad CVSS 7.3 NVD

M Alto vulnerabilidad

03/09/2026

[CVE-2026-80731] In the Linux kernel, the following vulnerability has been resolved: net: remove CAP_SYS_RAWIO zero-…

In the Linux kernel, the following vulnerability has been resolved: net: remove CAP_SYS_RAWIO zero-padding in dev_validate_header dev_validate_header() reads dev->hard_header_len directly when zero-padding short link layer headers for CAP_SYS_RAWIO holders: if (capable(CAP_SYS_RAWIO)) { memset(ll_header + len, 0, dev->hard_header_len - len); return true; } Packet send p…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

03/09/2026

[CVE-2026-80732] In the Linux kernel, the following vulnerability has been resolved: ata: pata_sl82c105: fix bridge …

In the Linux kernel, the following vulnerability has been resolved: ata: pata_sl82c105: fix bridge revision use-after-free pci_get_slot() returns a referenced PCI device. Commit 44c10138fd4b ("PCI: Change all drivers to use pci_device->revision") replaced a configuration-space read with direct access to the cached revision field, but left that access after pci_dev_put(). The bridge may therefore…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

03/09/2026

[CVE-2026-76642] util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running …

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with inherited suid bits or modify target inode permissions after a helper fails, achieving privilege escalation…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

02/09/2026

[CVE-2026-78409] The X-mount.subdir option uses a detached-tree fast path on Linux 6.15 and later and passes the conf…

The X-mount.subdir option uses a detached-tree fast path on Linux 6.15 and later and passes the configured subdirectory to open_tree() with AT_SYMLINK_NOFOLLOW. That flag does not stop intermediate symlink traversal or keep resolution inside the newly mounted filesystem. A local unprivileged user with an fstab-authorized X-mount.subdir entry can attach a host path at the intended mountpoint.

nvdaltovulnerabilidad CVSS 7.0 NVD

M Alto vulnerabilidad

02/09/2026

[CVE-2026-78410] A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pi…

A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a writable ancestor can redirect SUID mount(8) to bind another host directory. If the fstab entry also sets X-mount.owner, X-mount.group, or X-mount.mode, root then changes ownership or mode…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

01/09/2026

Inyección de comandos OS alta en yast2-users (CVE-2026-59680)

Se identificó una vulnerabilidad de inyección de comandos en yast2-users que afecta la gestión de usuarios en sistemas Linux basados en SUSE. La función get_password_term() no valida campos numéricos (shadowLastChange, shadowExpire), permitiendo ejecución arbitraria de comandos del sistema operativo con privilegios elevados. Afecta directamente servidores administrados en México y LATAM que utilicen esta herramienta.

nvdaltovulnerabilidad CVSS 8.0 NVD

M Alto vulnerabilidad

01/09/2026

Inyección de comandos OS alta en yast2-auth-client comprometería servidores con Active Directory

Una vulnerabilidad de inyección de comandos del sistema operativo en yast2-auth-client (CVSS 8.8) permite a atacantes que controlen valores de configuración de Active Directory ejecutar comandos arbitrarios como root en hosts configurados. El componente Auth::AuthConf interpola directamente valores de configuración en invocaciones de comandos Samba sin sanitización, afectando principalmente servidores Linux/Unix en entornos corporativos que integran autenticación con infraestructuras AD en LATAM.

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

01/09/2026

Vulnerabilidad alta en yast2-samba-client permite ejecución de comandos como root

Una falla de neutralización de caracteres especiales en yast2-samba-client (versiones hasta 5.0.4) permite a un atacante con control sobre un controlador de dominio Active Directory malicioso ejecutar comandos arbitrarios con privilegios root en máquinas siendo unidas al dominio. Afecta directamente servidores Linux en entornos corporativos que integran Active Directory, común en infraestructuras híbridas de LATAM con dominios Windows centralizados.

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

30/08/2026

[CVE-2026-82549] A vulnerability was identified in Linux Foundation Magma 1.9.0. This affects an unknown function of …

A vulnerability was identified in Linux Foundation Magma 1.9.0. This affects an unknown function of the component SecurityModeComplete Handler. Such manipulation leads to improper validation of integrity check value. The attack may be launched remotely. The exploit is publicly available and might be used.

nvdaltovulnerabilidad CVSS 8.3 NVD

M Alto vulnerabilidad

30/08/2026

[CVE-2026-82636] Qubes OS before qubes-core-dom0-linux 4.3.22 allows OS command injection during a qvm-copy-to-vm cal…

Qubes OS before qubes-core-dom0-linux 4.3.22 allows OS command injection during a qvm-copy-to-vm call from dom0 to an attacker-controlled qube, because the "system" library function is used to process an error message that may have shell metacharacters. This occurs in core-admin-linux/file-copy-vm/qfile-dom0-agent.c.

nvdaltovulnerabilidad CVSS 7.9 NVD

M Alto vulnerabilidad

29/08/2026

Vulnerabilidad alta en Sudo permite eludir controles de política en llamadas execveat

Sudo versiones hasta 1.9.17p2 no aplica verificaciones de política de intercepción a la llamada del sistema execveat en modo ptrace, permitiendo a usuarios autorizados ejecutar programas prohibidos mediante execveat o fexecve. Esta evasión compromete la aplicación de políticas y el registro de auditoría en servidores Linux/Unix altas en LATAM donde Sudo gestiona privilegios administrativos.

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

28/08/2026

Vulnerabilidad alta en IGEL OS 11 y 12: inyección de parámetros de arranque

IGEL OS versiones anteriores a 12.7.6 y 11.11.150 contienen una vulnerabilidad de inyección de parámetros de arranque (CVSS 7.6) que permite a atacantes con acceso físico ejecutar parámetros arbitrarios del cargador Linux. La falla radica en un área de configuración sin encripción ni firma que es leída por el cargador de arranque, permitiendo la inyección de comandos de kernel maliciosos con privilegios de entorno de arranque. Afecta principalmente entornos de terminales sin cliente en bancos, retail y centros de datos en LATAM.

nvdaltovulnerabilidad CVSS 7.6 NVD

M Alto vulnerabilidad

28/08/2026

[CVE-2026-55484] ALOS HTTP is a Linux-first Go web framework and application server built around a custom networking …

ALOS HTTP is a Linux-first Go web framework and application server built around a custom networking stack. Prior to 0.0.0-20260617230736-314b6783e196, core/utils.go::sanitizeRequestPath calls splitPathQuery on a request path beginning with a question mark and then performs the unchecked p[0] access without checking whether the resulting path is empty. An unauthenticated client can send a malformed…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80588] In the Linux kernel, the following vulnerability has been resolved: mptcp: reclaim forward-allocate…

In the Linux kernel, the following vulnerability has been resolved: mptcp: reclaim forward-allocated memory on RX path errors After commit 9db5b3cec4ec ("mptcp: borrow forward memory from subflow"), errors in the receive path prior to queueing skbs into the receive queue do not trigger forward-allocated memory reclaiming. Prevent forward memory from growing unboundedly in pathological drop scen…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80579] In the Linux kernel, the following vulnerability has been resolved: fbdev: clear fb_info->mode befo…

In the Linux kernel, the following vulnerability has been resolved: fbdev: clear fb_info->mode before deleting a videomode fb_set_var() can delete a mode from info->modelist when userspace passes FB_ACTIVATE_INV_MODE through FBIOPUT_VSCREENINFO. The code checks that the mode being deleted is not the current info->var and that fbcon is not using it, but it does not check fb_info->mode. fb_info->…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80580] In the Linux kernel, the following vulnerability has been resolved: fbdev: bound mode sysfs output …

In the Linux kernel, the following vulnerability has been resolved: fbdev: bound mode sysfs output to the sysfs buffer mode_string() uses snprintf() which can return a value larger than the remaining buffer space. show_modes() accumulates the return value into i without checking whether i has reached PAGE_SIZE, causing the offset to advance past the sysfs buffer if the modelist is long enough. …

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80582] In the Linux kernel, the following vulnerability has been resolved: drm/shmem_helper: Check VMA bou…

In the Linux kernel, the following vulnerability has been resolved: drm/shmem_helper: Check VMA boundaries for PMD mappings In the ->huge_fault handler do not install a PMD huge page mapping if the huge page exceeds the boundaries of the VMA. All other ->huge_fault handlers have similar checks and the resulting mapping will trigger a VM_BUG_ON_VMA() if it ever reaches copy_pmd_range().

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80583] In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: lpass-tx-macro: F…

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: lpass-tx-macro: Fix enum kcontrol accesses The "DEC0 MODE" to "DEC7 MODE" controls are enumerated, but tx_macro_dec_mode_get() and tx_macro_dec_mode_put() access their value through ucontrol->value.integer.value[0] (a long) instead of ucontrol->value.enumerated.item[0] (an unsigned int). This same pattern was fixe…

nvdaltovulnerabilidad CVSS 7.8 NVD