CVSS: 5.5EPSS: 0%CPEs: 10EXPL: 0CVE-2021-26932
https://notcve.org/view.php?id=CVE-2021-26932
An issue was discovered in the Linux kernel 3.2 through 5.10.16, as used by Xen. Grant mapping operations often occur in batch hypercalls, where a number of operations are done in a single hypercall, the success or failure of each one is reported to the backend driver, and the backend driver then loops over the results, performing follow-up actions based on the success or failure of each operation. Unfortunately, when running in PV mode, the Linux backend drivers mishandle this: Some errors are ignored, effectively implying their success from the success of related batch elements. In other cases, errors resulting from one batch element lead to further batch elements not being inspected, and hence successful ones to not be possible to properly unmap upon error recovery. Only systems with Linux backends running in PV mode are vulnerable. • http://xenbits.xen.org/xsa/advisory-361.html https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ebee0eab08594b2bd5db716288a4f1ae5936e9bc https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2XQR52ICKRK3GC4HDWLMWF2U55YGAR63 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GWQWPWYZRX •
CVSS: 5.9EPSS: 0%CPEs: 19EXPL: 1CVE-2021-23336 – Web Cache Poisoning
https://notcve.org/view.php?id=CVE-2021-23336
The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter. El paquete python/cpython desde versiones 0 y anteriores a 3.6.13, desde versiones 3.7.0 y anteriores a 3.7.10, desde versiones 3.8.0 y anteriores a 3.8.8, desde versiones 3.9.0 y anteriores a 3.9.2, son vulnerables al envenenamiento de caché web por medio de urllib.parse.parse_qsl y urllib.parse.parse_qs usando un vector llamado encubrimiento de parámetros. Cuando el atacante puede separar los parámetros de la consulta usando un punto y coma (;), pueden causar una diferencia en la interpretación de la petición entre el proxy (que se ejecuta con la configuración predeterminada) y el servidor. • http://www.openwall.com/lists/oss-security/2021/02/19/4 http://www.openwall.com/lists/oss-security/2021/05/01/2 https://github.com/python/cpython/pull/24297 https://lists.apache.org/thread.html/ra8ce70088ba291f358e077cafdb14d174b7a1ce9a9d86d1b332d6367%40%3Cusers.airflow.apache.org%3E https://lists.apache.org/thread.html/rc005f4de9d9b0ba943ceb8ff5a21a5c6ff8a9df52632476698d99432%40%3Cannounce.apache.org%3E https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E https:/&#x • CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') •
CVSS: 7.5EPSS: 0%CPEs: 5EXPL: 2CVE-2021-22880
https://notcve.org/view.php?id=CVE-2021-22880
The PostgreSQL adapter in Active Record before 6.1.2.1, 6.0.3.5, 5.2.4.5 suffers from a regular expression denial of service (REDoS) vulnerability. Carefully crafted input can cause the input validation in the `money` type of the PostgreSQL adapter in Active Record to spend too much time in a regular expression, resulting in the potential for a DoS attack. This only impacts Rails applications that are using PostgreSQL along with money type columns that take user input. El adaptador PostgreSQL en Active Record versiones anteriores a 6.1.2.1, 6.0.3.5, 5.2.4.5, sufre una vulnerabilidad de denegación de servicio de expresión regular (REDoS). Una entrada cuidadosamente diseñada puede causar que la comprobación de la entrada en el tipo "money" del adaptador de PostgreSQL en Active Record pase demasiado tiempo en una expresión regular, resultando en la posibilidad de un ataque DoS. • https://github.com/halkichi0308/CVE-2021-22880 https://discuss.rubyonrails.org/t/cve-2021-22880-possible-dos-vulnerability-in-active-record-postgresql-adapter/77129 https://hackerone.com/reports/1023899 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO5OJ3F4ZL3UXVLJO6ECANRVZBNRS2IH https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3 https://security.netapp.com/advisory/ntap-20210805-0009 https://www.debian.org/ • CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.9EPSS: 0%CPEs: 8EXPL: 0CVE-2021-0326 – wpa_supplicant: P2P group information processing vulnerability
https://notcve.org/view.php?id=CVE-2021-0326
In p2p_copy_client_info of p2p.c, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution if the target device is performing a Wi-Fi Direct search, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-172937525 En la función p2p_copy_client_info del archivo p2p.c, se presenta una posible escritura fuera de límites debido a una falta de comprobación de límites. Esto podría conllevar a una ejecución de código remota si el dispositivo de destino está realizando una búsqueda de Wi-Fi Direct, sin ser necesarios privilegios de ejecución adicionales. No es requerida una interacción del usuario para su explotación. • https://lists.debian.org/debian-lts-announce/2021/02/msg00033.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMHPFCON6ZFCGZXSASJFKQ3UX2UIYMND https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VOSA6DZUDLVOCYJNNXD6V3MRBVLCXZFH https://source.android.com/security/bulletin/2021-02-01 https://www.debian.org/security/2021/dsa-4898 https://access.redhat.com/security/cve/CVE-2021-0326 https://bugzilla.redhat.com/show_bug.cgi?id& • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVSS: 9.8EPSS: 1%CPEs: 5EXPL: 3CVE-2021-26937 – screen: crash when processing combining chars
https://notcve.org/view.php?id=CVE-2021-26937
encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character sequence. El archivo encoding.c en GNU Screen versiones hasta 4.8.0, permite a atacantes remotos causar una denegación de servicio (acceso de escritura no válido y bloqueo de la aplicación) o posiblemente tener otro impacto no especificado por medio de una secuencia de caracteres UTF-8 diseñada A flaw was found in screen. A specially crafted sequence of combining characters could cause an out of bounds write leading to arbitrary code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. • http://www.openwall.com/lists/oss-security/2021/02/09/8 https://ftp.gnu.org/gnu/screen https://lists.debian.org/debian-lts-announce/2021/02/msg00031.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GNWBOIDEPOEQS5RMQVMFKHKXJCGNYWBL https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JJWLXP45POUUYBJRRWPVAWNZDJTLYWVM https://lists.gnu.org/archive/html/screen-devel/2021-02/msg00000.html https://security.gentoo.org/glsa/ • CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') CWE-787: Out-of-bounds Write •