CVSS: 6.8EPSS: 0%CPEs: 27EXPL: 1CVE-2021-4203 – kernel: Race condition in races in sk_peer_pid and sk_peer_cred accesses
https://notcve.org/view.php?id=CVE-2021-4203
A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information. Se ha encontrado un fallo de lectura de uso de memoria previamente liberada en la función sock_getsockopt() en el archivo net/core/sock.c debido a la carrera de SO_PEERCRED y SO_PEERGROUPS con listen() (y connect()) en el kernel de Linux. En este fallo, un atacante con privilegios de usuario puede bloquear el sistema o filtrar información interna del kernel A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information. • https://bugs.chromium.org/p/project-zero/issues/detail?id=2230&can=7&q=modified-after%3Atoday-30&sort=-modified&colspec=ID%20Type%20Status%20Priority%20Milestone%20Owner%20Summary%20Modified%20Cve&cells=tiles&redir=1 https://bugzilla.redhat.com/show_bug.cgi?id=2036934 https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=35306eb23814 https://lore.kernel.org/netdev/20210929225750.2548112-1-eric.dumazet%40gmail.com/T https://security.netapp.com/advisory/ntap-20221111-0003 https:&# • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 6.5EPSS: 0%CPEs: 458EXPL: 0CVE-2022-0001 – hw: cpu: intel: Branch History Injection (BHI)
https://notcve.org/view.php?id=CVE-2022-0001
Non-transparent sharing of branch predictor selectors between contexts in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access. La compartición no transparente de selectores de predicción de rama entre contextos en algunos procesadores Intel(R) puede permitir que un usuario autorizado permita potencialmente una divulgación de información por medio del acceso local A flaw was found in hw. The Branch History Injection (BHI) describes a specific form of intra-mode BTI. This flaw allows an unprivileged attacker to manipulate the branch history before transitioning to supervisor or VMX root mode. This issue is an effort to cause an indirect branch predictor to select a specific predictor entry for an indirect branch, and a disclosure gadget at the predicted target will transiently execute. • http://www.openwall.com/lists/oss-security/2022/03/18/2 https://security.netapp.com/advisory/ntap-20220818-0004 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00598.html https://www.kb.cert.org/vuls/id/155143 https://www.oracle.com/security-alerts/cpujul2022.html https://access.redhat.com/security/cve/CVE-2022-0001 https://bugzilla.redhat.com/show_bug.cgi?id=2061712 •
CVSS: 6.5EPSS: 0%CPEs: 504EXPL: 0CVE-2022-0002 – hw: cpu: intel: Intra-Mode BTI
https://notcve.org/view.php?id=CVE-2022-0002
Non-transparent sharing of branch predictor within a context in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access. La compartición no transparente de selectores de predicción de rama dentro de un contexto en algunos procesadores Intel(R) puede permitir que un usuario autorizado permita potencialmente una divulgación de información por medio del acceso local A flaw was found in hw. The Intra-mode BTI refers to a variant of Branch Target Injection aka SpectreV2 (BTI) where an indirect branch speculates to an aliased predictor entry for a different indirect branch in the same predictor mode, and a disclosure gadget at the predicted target transiently executes. These predictor entries may contain targets corresponding to the targets of an indirect near jump, indirect near call, and near return instructions, even if these branches were only transiently executed. The managed runtimes provide an attacker with the means to create the aliasing required for intra-mode BTI attacks. • http://www.openwall.com/lists/oss-security/2022/03/18/2 https://security.netapp.com/advisory/ntap-20220818-0004 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00598.html https://www.oracle.com/security-alerts/cpujul2022.html https://access.redhat.com/security/cve/CVE-2022-0002 https://bugzilla.redhat.com/show_bug.cgi?id=2061721 •
CVSS: 7.8EPSS: 0%CPEs: 16EXPL: 5CVE-2022-25636 – kernel: heap out of bounds write in nf_dup_netdev.c
https://notcve.org/view.php?id=CVE-2022-25636
net/netfilter/nf_dup_netdev.c in the Linux kernel 5.4 through 5.6.10 allows local users to gain privileges because of a heap out-of-bounds write. This is related to nf_tables_offload. El archivo net/netfilter/nf_dup_netdev.c en el kernel de Linux versiones 5.4 hasta 5.6.10, permite a usuarios locales alcanzar privilegios debido a una escritura fuera de los límites de la pila. Esto está relacionado con nf_tables_offload An out-of-bounds (OOB) memory access flaw was found in nft_fwd_dup_netdev_offload in net/netfilter/nf_dup_netdev.c in the netfilter subcomponent in the Linux kernel due to a heap out-of-bounds write problem. This flaw allows a local attacker with a user account on the system to gain access to out-of-bounds memory, leading to a system crash or a privilege escalation threat. • https://github.com/Bonfee/CVE-2022-25636 https://github.com/veritas501/CVE-2022-25636-PipeVersion https://github.com/chenaotian/CVE-2022-25636 http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html http://www.openwall.com/lists/oss-security/2022/02/22/1 https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git/commit/?id=b1a5983f56e371046dcf164f90bfaf704d2b89f6 https://nickgregory.me/linux/security/2022/03/12/cve-2022-25636 https://security • CWE-269: Improper Privilege Management CWE-787: Out-of-bounds Write •
CVSS: 9.8EPSS: 0%CPEs: 9EXPL: 1CVE-2021-3773 – kernel: lack of port sanity checking in natd and netfilter leads to exploit of OpenVPN clients
https://notcve.org/view.php?id=CVE-2021-3773
A flaw in netfilter could allow a network-connected attacker to infer openvpn connection endpoint information for further use in traditional network attacks. Un fallo en netfilter podría permitir a un atacante conectado a la red inferir información del endpoint de la conexión openvpn para su posterior uso en ataques de red tradicionales • https://github.com/d0rb/CVE-2021-3773 https://bugzilla.redhat.com/show_bug.cgi?id=2004949 https://www.oracle.com/security-alerts/cpujul2022.html https://citizenlab.ca/2024/07/vulnerabilities-in-vpns-paper-presented-at-the-privacy-enhancing-technologies-symposium-2024 https://access.redhat.com/security/cve/CVE-2021-3773 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •