CVSS: 6.5EPSS: 0%CPEs: 175EXPL: 1CVE-2021-3710 – Apport info disclosure via path traversal bug in read_file
https://notcve.org/view.php?id=CVE-2021-3710
01 Oct 2021 — An information disclosure via path traversal was discovered in apport/hookutils.py function read_file(). This issue affects: apport 2.14.1 versions prior to 2.14.1-0ubuntu3.29+esm8; 2.20.1 versions prior to 2.20.1-0ubuntu2.30+esm2; 2.20.9 versions prior to 2.20.9-0ubuntu7.26; 2.20.11 versions prior to 2.20.11-0ubuntu27.20; 2.20.11 versions prior to 2.20.11-0ubuntu65.3; Se ha detectado una divulgación de información por medio de un salto de ruta en la función read_file() del archivo apport/hookutils.py. Este... • https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1933832 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-24: Path Traversal: '../filedir' •
CVSS: 7.5EPSS: 0%CPEs: 27EXPL: 1CVE-2021-3737 – python: urllib: HTTP client possible infinite loop on a 100 Continue response
https://notcve.org/view.php?id=CVE-2021-3737
17 Sep 2021 — A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo en python. Una respuesta HTTP manejada inapropiadamente en el código del cliente HTTP de python puede permitir a un atacante remoto, que controle el servidor HTTP, hacer que el script del c... • https://bugs.python.org/issue44022 • CWE-400: Uncontrolled Resource Consumption CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 7.0EPSS: 0%CPEs: 31EXPL: 1CVE-2021-3640 – kernel: use-after-free vulnerability in function sco_sock_sendmsg()
https://notcve.org/view.php?id=CVE-2021-3640
15 Sep 2021 — A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system. Se encontró un fallo de uso de memoria previamente liberada en la función sco_sock_sendmsg() del subsiste... • https://bugzilla.redhat.com/show_bug.cgi?id=1980646 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 6.5EPSS: 0%CPEs: 175EXPL: 1CVE-2021-3709 – Apport file permission bypass through emacs byte compilation errors
https://notcve.org/view.php?id=CVE-2021-3709
14 Sep 2021 — Function check_attachment_for_errors() in file data/general-hooks/ubuntu.py could be tricked into exposing private data via a constructed crash file. This issue affects: apport 2.14.1 versions prior to 2.14.1-0ubuntu3.29+esm8; 2.20.1 versions prior to 2.20.1-0ubuntu2.30+esm2; 2.20.9 versions prior to 2.20.9-0ubuntu7.26; 2.20.11 versions prior to 2.20.11-0ubuntu27.20; 2.20.11 versions prior to 2.20.11-0ubuntu65.3; La función check_attachment_for_errors() en el archivo data/general-hooks/ubuntu.py podría ser ... • https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1934308 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-538: Insertion of Sensitive Information into Externally-Accessible File or Directory •
CVSS: 7.8EPSS: 0%CPEs: 15EXPL: 0CVE-2021-3600 – kernel: eBPF 32-bit source register truncation on div/mod
https://notcve.org/view.php?id=CVE-2021-3600
23 Jun 2021 — It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code. Se descubrió que la implementación de eBPF en el kernel de Linux no rastreaba adecuadamente la información de límites para registros de 32 bits al realizar operaciones div y mod. Un atacante local podría usar esto para posiblemente ejecutar código arbitrario. A flaw was fou... • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3600 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVSS: 8.8EPSS: 73%CPEs: 3EXPL: 18CVE-2021-3493 – Linux Kernel Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2021-3493
16 Apr 2021 — The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a patch carried in the Ubuntu kernel to allow unprivileged overlay mounts, an attacker could use this to gain elevated privileges. La implementación de overlayfs en el kernel de Linux no comprobó apropiadamente con respecto a los espacios de nombre de los usuarios, l... • https://packetstorm.news/files/id/162866 • CWE-270: Privilege Context Switching Error CWE-863: Incorrect Authorization •
CVSS: 8.8EPSS: 23%CPEs: 3EXPL: 1CVE-2021-3492 – Ubuntu linux kernel shiftfs file system double free vulnerability
https://notcve.org/view.php?id=CVE-2021-3492
16 Apr 2021 — Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring during copy_from_user() correctly. These could lead to either a double-free situation or memory not being freed at all. An attacker could use this to cause a denial of service (kernel memory exhaustion) or gain privileges via executing arbitrary code. AKA ZDI-CAN-13562. Shiftfs, un sistema de archivos de apilamiento fuera del árbol incluido en los kernels de Ubuntu Linux, no manejaba aprop... • https://github.com/synacktiv/CVE-2021-3492 • CWE-401: Missing Release of Memory after Effective Lifetime CWE-415: Double Free •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2021-3444 – Linux kernel bpf verifier incorrect mod32 truncation
https://notcve.org/view.php?id=CVE-2021-3444
23 Mar 2021 — The bpf verifier in the Linux kernel did not properly handle mod32 destination register truncation when the source register was known to be 0. A local attacker with the ability to load bpf programs could use this gain out-of-bounds reads in kernel memory leading to information disclosure (kernel memory), and possibly out-of-bounds writes that could potentially lead to code execution. This issue was addressed in the upstream kernel in commit 9b00f1b78809 ("bpf: Fix truncation handling for mod32 dst reg wrt z... • http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html • CWE-125: Out-of-bounds Read CWE-681: Incorrect Conversion between Numeric Types •
CVSS: 6.0EPSS: 0%CPEs: 9EXPL: 0CVE-2020-27171 – Kernel Live Patch Security Notice LSN-0075-1
https://notcve.org/view.php?id=CVE-2020-27171
20 Mar 2021 — An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c has an off-by-one error (with a resultant integer underflow) affecting out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-10d2bb2e6b1d. Se detectó un problema en el kernel de Linux versiones anteriores a 5.11.8. El archivo kernel/bpf/verifier.c presenta un error por un paso (con un subdesbordamiento de... • http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html • CWE-193: Off-by-one Error •
CVSS: 4.7EPSS: 0%CPEs: 9EXPL: 0CVE-2020-27170 – kernel: Speculation on pointer arithmetic against bpf_context pointer
https://notcve.org/view.php?id=CVE-2020-27170
20 Mar 2021 — An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects pointer types that do not define a ptr_limit. Se detectó un problema en el kernel de Linux versiones anteriores a 5.11.8. El archivo kernel/bpf/verifier.c lleva a cabo especulaciones no deseadas fuera de ... • http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-203: Observable Discrepancy •