
CVE-2023-4732 – Kernel: race between task migrating pages and another task calling exit_mmap to release those same pages getting invalid opcode bug in include/linux/swapops.h
https://notcve.org/view.php?id=CVE-2023-4732
03 Oct 2023 — A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel. In this flaw, an attacker with a local user privilege may cause a denial of service problem due to a BUG statement referencing pmd_t x. Se encontró una falla en pfn_swap_entry_to_page en el subsistema de administración de memoria del kernel de Linux. En esta falla, un atacante con privilegios de usuario local puede causar un problema de denegación de servicio debido a una declaración de ERROR que hace referencia a... • https://access.redhat.com/errata/RHSA-2023:6901 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-366: Race Condition within a Thread •

CVE-2023-4806 – Glibc: potential use-after-free in getaddrinfo()
https://notcve.org/view.php?id=CVE-2023-4806
18 Sep 2023 — A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL an... • http://www.openwall.com/lists/oss-security/2023/10/03/4 • CWE-416: Use After Free •

CVE-2023-4527 – Glibc: stack read overflow in getaddrinfo in no-aaaa mode
https://notcve.org/view.php?id=CVE-2023-4527
18 Sep 2023 — A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048 bytes can potentially disclose stack contents through the function returned address data, and may cause a crash. Se encontró una falla en glibc. Cuando se llama a la función getaddrinfo con la familia de direcciones AF_UNSPEC y el sistema está configurado con el modo no-aaaa a través de /etc/resolv.co... • http://www.openwall.com/lists/oss-security/2023/09/25/1 • CWE-121: Stack-based Buffer Overflow CWE-125: Out-of-bounds Read •

CVE-2023-4042 – Ghostscript: incomplete fix for cve-2020-16305
https://notcve.org/view.php?id=CVE-2023-4042
23 Aug 2023 — A flaw was found in ghostscript. The fix for CVE-2020-16305 in ghostscript was not included in RHSA-2021:1852-06 advisory as it was claimed to be. This issue only affects the ghostscript package as shipped with Red Hat Enterprise Linux 8. An update for ghostscript is now available for Red Hat Enterprise Linux 8. Issues addressed include buffer overflow and denial of service vulnerabilities. • https://access.redhat.com/errata/RHSA-2023:7053 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •

CVE-2023-0179 – kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan
https://notcve.org/view.php?id=CVE-2023-0179
24 Jan 2023 — A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to the root user via arbitrary code execution. Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel did not properly handle VLAN headers in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. It was discov... • https://github.com/TurtleARM/CVE-2023-0179-PoC • CWE-190: Integer Overflow or Wraparound •

CVE-2021-3669 – kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts
https://notcve.org/view.php?id=CVE-2021-3669
11 May 2022 — A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS. Se ha encontrado un fallo en el kernel de Linux. La medición del uso de la memoria compartida no escala con grandes recuentos de segmentos de memoria compartida, lo que podría conllevar a el agotamiento de recursos y el DoS. Red Hat Advanced Cluster Management for Kubernetes 2.5.0 images Red Hat Advanced Cluster Management for Kube... • https://access.redhat.com/security/cve/CVE-2021-3669 • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •

CVE-2021-3975 – libvirt: segmentation fault during VM shutdown can lead to vdsm hang
https://notcve.org/view.php?id=CVE-2021-3975
03 May 2022 — A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash. Se ha encontrado un fallo de uso de memoria previamente liberad... • https://access.redhat.com/security/cve/CVE-2021-3975 • CWE-416: Use After Free •

CVE-2022-1011 – kernel: FUSE allows UAF reads of write() buffers, allowing theft of (partial) /etc/shadow hashes
https://notcve.org/view.php?id=CVE-2022-1011
18 Mar 2022 — A use-after-free flaw was found in the Linux kernel’s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation. Se ha encontrado un fallo de uso después de libre en el sistema de archivos FUSE del kernel de Linux en la forma en que un usuario activa write(). Este defecto permite a un usuario local obtener acceso no autorizado a los datos del sistema de archivos FUSE, lo que resulta en una... • https://packetstorm.news/files/id/166772 • CWE-416: Use After Free •

CVE-2021-31566 – libarchive: symbolic links incorrectly followed when changing modes, times, ACL and flags of a file while extracting an archive
https://notcve.org/view.php?id=CVE-2021-31566
15 Mar 2022 — An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system. Un fallo de resolución de enlaces inapropiado puede ocurrir mientras es extraído un archivo que conlleva a un cambio de modos, tiempos, listas ... • https://access.redhat.com/security/cve/CVE-2021-31566 • CWE-59: Improper Link Resolution Before File Access ('Link Following') •

CVE-2022-0516 – kernel: missing check in ioctl allows kernel memory read/write
https://notcve.org/view.php?id=CVE-2022-0516
08 Mar 2022 — A vulnerability was found in kvm_s390_guest_sida_op in the arch/s390/kvm/kvm-s390.c function in KVM for s390 in the Linux kernel. This flaw allows a local attacker with a normal user privilege to obtain unauthorized memory write access. This flaw affects Linux kernel versions prior to 5.17-rc4. Se encontró una vulnerabilidad en la función kvm_s390_guest_sida_op en el archivo arch/s390/kvm/kvm-s390.c en KVM para s390 en el kernel de Linux. Este fallo permite a un atacante local con un privilegio de usuario n... • https://bugzilla.redhat.com/show_bug.cgi?id=2050237 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-201: Insertion of Sensitive Information Into Sent Data •