CVSS: 7.0EPSS: 0%CPEs: 17EXPL: 0CVE-2019-12817 – kernel: ppc: unrelated processes being able to read/write to each other's virtual memory
https://notcve.org/view.php?id=CVE-2019-12817
arch/powerpc/mm/mmu_context_book3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes may be able to read/write to one another's virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected. En el archivo arch/powerpc/mm/mmu_context_book3s64.c en el kernel de Linux anterior a versión 5.1.15 para powerpc, presenta un error (bug) por el cual procesos no relacionados pueden leer y escribir en la memoria virtual de otros bajo ciertas condiciones por medio de un mmap superior a 512 TB. Sólo un subconjunto de sistemas powerpc están afectados. A flaw was found in the way the Linux kernel's memory subsystem on certain 64-bit PowerPCs with the hash page table MMU handled memory above 512TB. • http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html http://www.openwall.com/lists/oss-security/2019/06/24/5 http://www.securityfocus.com/bid/108884 https://access.redhat.com/errata/RHSA-2019:2703 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.15 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca72d88378b2f2444d3ec145dd442d449d3fefbc https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/messag • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 6EXPL: 0CVE-2019-3896 – kernel: Double free in lib/idr.c
https://notcve.org/view.php?id=CVE-2019-3896
A double-free can happen in idr_remove_all() in lib/idr.c in the Linux kernel 2.6 branch. An unprivileged local attacker can use this flaw for a privilege escalation or for a system crash and a denial of service (DoS). Puede suceder una vulnerabilidad de doble liberación en la función idr_remove_all() en el archivo lib/idr.c en la sección del kernel de Linux versión 2.6. Un atacante local sin privilegios puede usar este defecto para una escalada de privilegios o para un bloqueo del sistema y una denegación de servicio (DoS). A double-free can happen in idr_remove_all() in lib/idr.c in the Linux kernel. • http://www.securityfocus.com/bid/108814 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3896 https://security.netapp.com/advisory/ntap-20190710-0002 https://support.f5.com/csp/article/K04327111 https://access.redhat.com/security/cve/CVE-2019-3896 https://bugzilla.redhat.com/show_bug.cgi?id=1694812 • CWE-415: Double Free CWE-416: Use After Free •
CVSS: 7.8EPSS: 97%CPEs: 91EXPL: 0CVE-2019-11477 – Integer overflow in TCP_SKB_CB(skb)->tcp_gso_segs
https://notcve.org/view.php?id=CVE-2019-11477
Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit 3b4929f65b0d8249f19a50245cd88ed1a2f78cff. Jonathan Looney detectó que el valor TCP_SKB_CB(skb)-mayor que tcp_gso_segs estuvo sujeto a un desbordamiento de enteros en el kernel de Linux durante el manejo del Reconocimiento Selectivo (SACK) de TCP. Un atacante remoto podría usar esto para causar una denegación de servicio. • http://packetstormsecurity.com/files/153346/Kernel-Live-Patch-Security-Notice-LSN-0052-1.html http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191225-01-kernel-en http://www.openwall.com/lists/oss-security/2019/06/20/3 http://www.openwall.com/lists/oss-security/2019/06/28/2 http://www.openwall.com/lists/oss&# • CWE-190: Integer Overflow or Wraparound CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.5EPSS: 96%CPEs: 90EXPL: 0CVE-2019-11478 – SACK can cause extensive memory use via fragmented resend queue
https://notcve.org/view.php?id=CVE-2019-11478
Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit f070ef2ac66716357066b683fb0baf55f8191a2e. Jonathan Looney descubrió que la implementación de la cola de retransmisión de TCP en tcp_fragment en el kernel de Linux podría estar fragmentada cuando se manejan ciertas secuencias de Reconocimiento Selectivo (SACK) de TCP. Un atacante remoto podría usar esto para causar una denegación de servicio. • http://packetstormsecurity.com/files/153346/Kernel-Live-Patch-Security-Notice-LSN-0052-1.html http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt http://www.openwall.com/lists/oss-security/2019/06/28/2 http://www.openwall.com/lists/oss-security/2019/07/06/3 http://www.openwall.com/lists& • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 9.8EPSS: 1%CPEs: 45EXPL: 0CVE-2019-10126 – kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c
https://notcve.org/view.php?id=CVE-2019-10126
A flaw was found in the Linux kernel. A heap based buffer overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c might lead to memory corruption and possibly other consequences. Se encontró un defecto en el kernel de Linux. Un desbordamiento de búfer en la región heap de la memoria en la función mwifiex_uap_parse_tail_ies en el archivo drivers/net/wireless/marvell/mwifiex/ie.c, podría provocar corrupción de la memoria y posiblemente otras consecuencias. A flaw was found in the mwifiex implementation in the Linux kernel. • http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html http://packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html http://www.securityfocus.com/bid/108817 https://access.redhat.com/errat • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •