CVSS: 5.3EPSS: 0%CPEs: 9EXPL: 0CVE-2024-36020 – i40e: fix vf may be used uninitialized in this function warning
https://notcve.org/view.php?id=CVE-2024-36020
In the Linux kernel, the following vulnerability has been resolved: i40e: fix vf may be used uninitialized in this function warning To fix the regression introduced by commit 52424f974bc5, which causes servers hang in very hard to reproduce conditions with resets races. Using two sources for the information is the root cause. In this function before the fix bumping v didn't mean bumping vf pointer. But the code used this variables interchangeably, so stale vf could point to different/not intended vf. Remove redundant "v" variable and iterate via single VF pointer across whole function instead to guarantee VF pointer validity. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i40e: se puede usar vf sin inicializar en esta función advertencia Para corregir la regresión introducida por el commit 52424f974bc5, que hace que los servidores se cuelguen con mucha dificultad para reproducir condiciones con restablecimientos de ejecución. El uso de dos fuentes para la información es la causa fundamental. En esta función, antes de la corrección, tocar v no significaba tocar el puntero vf. • https://git.kernel.org/stable/c/76ed715836c6994bac29d9638e9314e6e3b08651 https://git.kernel.org/stable/c/e88c2a1e28c5475065563d66c07ca879a9afbd07 https://git.kernel.org/stable/c/9abae363af5ced6adbf04c14366289540281fb26 https://git.kernel.org/stable/c/c39de3ae5075ea5f78e097cb5720d4e52d5caed9 https://git.kernel.org/stable/c/52424f974bc53c26ba3f00300a00e9de9afcd972 https://git.kernel.org/stable/c/02f949747e6fb767b29f7931d4bbf40911684e7a https://git.kernel.org/stable/c/cc9cd02dd9e8b7764ea9effb24f4f1dd73d1b23d https://git.kernel.org/stable/c/9dcf0fcb80f6aeb01469e3c957f8d4c97 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 4.1EPSS: 0%CPEs: 8EXPL: 0CVE-2024-36017 – rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation
https://notcve.org/view.php?id=CVE-2024-36017
In the Linux kernel, the following vulnerability has been resolved: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation Each attribute inside a nested IFLA_VF_VLAN_LIST is assumed to be a struct ifla_vf_vlan_info so the size of such attribute needs to be at least of sizeof(struct ifla_vf_vlan_info) which is 14 bytes. The current size validation in do_setvfinfo is against NLA_HDRLEN (4 bytes) which is less than sizeof(struct ifla_vf_vlan_info) so this validation is not enough and a too small attribute might be cast to a struct ifla_vf_vlan_info, this might result in an out of bands read access when accessing the saved (casted) entry in ivvl. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rtnetlink: Validación correcta del atributo IFLA_VF_VLAN_LIST anidado. Se supone que cada atributo dentro de un IFLA_VF_VLAN_LIST anidado es una estructura ifla_vf_vlan_info, por lo que el tamaño de dicho atributo debe ser al menos de sizeof(struct ifla_vf_vlan_info), que es de 14 bytes. La validación de tamaño actual en do_setvfinfo es contra NLA_HDRLEN (4 bytes), que es menor que sizeof(struct ifla_vf_vlan_info), por lo que esta validación no es suficiente y un atributo demasiado pequeño podría convertirse en una estructura ifla_vf_vlan_info, esto podría resultar en un acceso de lectura fuera de banda al acceder a la entrada guardada (transmitida) en ivvl. • https://git.kernel.org/stable/c/79aab093a0b5370d7fc4e99df75996f4744dc03f https://git.kernel.org/stable/c/8ac69ff2d0d5be9734c4402de932aa3dc8549c1a https://git.kernel.org/stable/c/5e7ef2d88666a0212db8c38e6703864b9ce70169 https://git.kernel.org/stable/c/6c8f44b02500c7d14b5e6618fe4ef9a0da47b3de https://git.kernel.org/stable/c/f3c1bf3054f96ddeab0621d920445bada769b40e https://git.kernel.org/stable/c/6e4c7193954f4faab92f6e8d88bc5565317b44e7 https://git.kernel.org/stable/c/206003c748b88890a910ef7142d18f77be57550b https://git.kernel.org/stable/c/4a4b9757789a1551d2df130df23bfb354 • CWE-125: Out-of-bounds Read •
CVSS: 7.7EPSS: 0%CPEs: 9EXPL: 0CVE-2024-36016 – tty: n_gsm: fix possible out-of-bounds in gsm0_receive()
https://notcve.org/view.php?id=CVE-2024-36016
In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: fix possible out-of-bounds in gsm0_receive() Assuming the following: - side A configures the n_gsm in basic option mode - side B sends the header of a basic option mode frame with data length 1 - side A switches to advanced option mode - side B sends 2 data bytes which exceeds gsm->len Reason: gsm->len is not used in advanced option mode. - side A switches to basic option mode - side B keeps sending until gsm0_receive() writes past gsm->buf Reason: Neither gsm->state nor gsm->len have been reset after reconfiguration. Fix this by changing gsm->count to gsm->len comparison from equal to less than. Also add upper limit checks against the constant MAX_MRU in gsm0_receive() and gsm1_receive() to harden against memory corruption of gsm->len and gsm->mru. All other checks remain as we still need to limit the data according to the user configuration and actual payload size. En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: tty: n_gsm: corrige posibles fuera de los límites en gsm0_receive() Suponiendo lo siguiente: - el lado A configura el n_gsm en modo de opción básica - el lado B envía el encabezado de un mensaje básico trama del modo de opción con longitud de datos 1 - el lado A cambia al modo de opción avanzada - el lado B envía 2 bytes de datos que exceden gsm->len Motivo: gsm->len no se usa en el modo de opción avanzada. - el lado A cambia al modo de opción básica - el lado B continúa enviando hasta que gsm0_receive() escribe más allá de gsm->buf Motivo: Ni gsm->state ni gsm->len se han restablecido después de la reconfiguración. Solucione este problema cambiando gsm->count a gsm->len comparación de igual a menor que. También agregue comprobaciones de límite superior contra la constante MAX_MRU en gsm0_receive() y gsm1_receive() para proteger contra la corrupción de memoria de gsm->len y gsm->mru. • https://git.kernel.org/stable/c/e1eaea46bb4020b38a141b84f88565d4603f8dd0 https://git.kernel.org/stable/c/9513d4148950b05bc99fa7314dc883cc0e1605e5 https://git.kernel.org/stable/c/b229bc6c6ea9fe459fc3fa94fd0a27a2f32aca56 https://git.kernel.org/stable/c/0fb736c9931e02dbc7d9a75044c8e1c039e50f04 https://git.kernel.org/stable/c/4c267110fc110390704cc065edb9817fdd10ff54 https://git.kernel.org/stable/c/46f52c89a7e7d2691b97a9728e4591d071ca8abc https://git.kernel.org/stable/c/774d83b008eccb1c48c14dc5486e7aa255731350 https://git.kernel.org/stable/c/f126ce7305fe88f49cdabc6db4168b931 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVSS: 5.9EPSS: 0%CPEs: 11EXPL: 0CVE-2023-52881 – tcp: do not accept ACK of bytes we never sent
https://notcve.org/view.php?id=CVE-2023-52881
In the Linux kernel, the following vulnerability has been resolved: tcp: do not accept ACK of bytes we never sent This patch is based on a detailed report and ideas from Yepeng Pan and Christian Rossow. ACK seq validation is currently following RFC 5961 5.2 guidelines: The ACK value is considered acceptable only if it is in the range of ((SND.UNA - MAX.SND.WND) <= SEG.ACK <= SND.NXT). All incoming segments whose ACK value doesn't satisfy the above condition MUST be discarded and an ACK sent back. It needs to be noted that RFC 793 on page 72 (fifth check) says: "If the ACK is a duplicate (SEG.ACK < SND.UNA), it can be ignored. If the ACK acknowledges something not yet sent (SEG.ACK > SND.NXT) then send an ACK, drop the segment, and return". The "ignored" above implies that the processing of the incoming data segment continues, which means the ACK value is treated as acceptable. • https://git.kernel.org/stable/c/354e4aa391ed50a4d827ff6fc11e0667d0859b25 https://git.kernel.org/stable/c/8d15569e14cfcf9151e9e3b4c0cb98369943a2bb https://git.kernel.org/stable/c/e252bbd8c87b95e9cecdc01350fbb0b46a0f9bf1 https://git.kernel.org/stable/c/2ee4432e82437a7c051c254b065fbf5d4581e1a3 https://git.kernel.org/stable/c/69eae75ca5255e876628ac5cee9eaab31f644b57 https://git.kernel.org/stable/c/458f07ffeccd17f99942311e09ef574ddf4a414a https://git.kernel.org/stable/c/7ffff0cc929fdfc62a74b384c4903d6496c910f0 https://git.kernel.org/stable/c/b17a886ed29f3b70b78ccf632dad03e0c •
CVSS: 5.5EPSS: 0%CPEs: 10EXPL: 0CVE-2024-36015 – ppdev: Add an error check in register_device
https://notcve.org/view.php?id=CVE-2024-36015
In the Linux kernel, the following vulnerability has been resolved: ppdev: Add an error check in register_device In register_device, the return value of ida_simple_get is unchecked, in witch ida_simple_get will use an invalid index value. To address this issue, index should be checked after ida_simple_get. When the index value is abnormal, a warning message should be printed, the port should be dropped, and the value should be recorded. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ppdev: agregue una verificación de errores en Register_device. En Register_device, el valor de retorno de ida_simple_get no está marcado, por lo que ida_simple_get usará un valor de índice no válido. Para solucionar este problema, se debe verificar el índice después de ida_simple_get. • https://git.kernel.org/stable/c/9a69645dde1188723d80745c1bc6ee9af2cbe2a7 https://git.kernel.org/stable/c/9c2b46e720d5b083268ca0131f513a90696f3a82 https://git.kernel.org/stable/c/762602796be626cbb6b3a6573e00b9ee7db00c97 https://git.kernel.org/stable/c/65cd017d43f4319a56747d38308b0a24cf57299e https://git.kernel.org/stable/c/b8c6b83cc3adff3ddf403c8c7063fe6d08b2b9d9 https://git.kernel.org/stable/c/d32caf51379a4d71db03d3d4d7c22d27cdf7f68b https://git.kernel.org/stable/c/b65d0410b879af0295d22438a4a32012786d152a https://git.kernel.org/stable/c/df9329247dbbf00f6057e002139ab3fa5 •