CVSS: 6.5EPSS: 0%CPEs: 26EXPL: 1CVE-2021-22922 – curl: Content not matching hash in Metalink is not being discarded
https://notcve.org/view.php?id=CVE-2021-22922
When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and theclient can then download the file from one or several of them. In a serial orparallel manner.If one of the servers hosting the contents has been breached and the contentsof the specific file on that server is replaced with a modified payload, curlshould detect this when the hash of the file mismatches after a completeddownload. It should remove the contents and instead try getting the contentsfrom another URL. This is not done, and instead such a hash mismatch is onlymentioned in text and the potentially malicious content is kept in the file ondisk. Cuando es instruido a curl descargar un contenido usando la funcionalidad metalink, el contenido es comprobado con un hash proporcionado en el archivo XML metalink. • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://hackerone.com/reports/1213175 https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cuser • CWE-20: Improper Input Validation CWE-755: Improper Handling of Exceptional Conditions CWE-840: Business Logic Errors •
CVSS: 5.7EPSS: 0%CPEs: 26EXPL: 1CVE-2021-22923 – curl: Metalink download sends credentials
https://notcve.org/view.php?id=CVE-2021-22923
When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened. Cuando es instruido a curl de obtener contenidos usando la funcionalidad metalink, y se usan un nombre de usuario y una contraseña para descargar el archivo XML metalink, esas mismas credenciales se pasan subsecuentemente a cada uno de los servidores de los que curl descargará o intentará descargar los contenidos. A menudo, en contra de las expectativas e intenciones del usuario y sin avisarle de lo sucedido A flaw was found in curl in the way curl handles credentials when downloading content using the Metalink feature. This flaw allows malicious actors controlling a hosting server to gain access to credentials provided while downloading content without the user's knowledge. • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://hackerone.com/reports/1213181 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V https://security.gentoo.org/glsa/202212-01 https://security.netapp.com/advisory/ntap-20210902-0003 https://www.oracle.com/security-alerts/cpuoct2021.html https://access.redhat.com/security/cve/CVE-2021-22923 https://bugzilla.redhat.com/show_bug.cgi?id=1981438 • CWE-319: Cleartext Transmission of Sensitive Information CWE-522: Insufficiently Protected Credentials •
CVSS: 5.3EPSS: 0%CPEs: 45EXPL: 1CVE-2021-22925 – curl: Incorrect fix for CVE-2021-22898 TELNET stack contents disclosure
https://notcve.org/view.php?id=CVE-2021-22925
curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application. curl soporta la opción de línea de comandos "-t", conocida como "CURLOPT_TELNETOPTIONS" en libcurl. Debido a un fallo en el analizador de opciones para el envío de variables "NEW_ENV", libcurl podría pasar datos no inicializados de un búfer en la región stack de la memoria al servidor. Por lo tanto, podría revelar potencialmente información interna confidencial al servidor usando un protocolo de red de texto sin cifrar. • http://seclists.org/fulldisclosure/2021/Sep/39 http://seclists.org/fulldisclosure/2021/Sep/40 https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf https://hackerone.com/reports/1223882 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V https://security.gentoo.org/glsa/202212-01 https://security.netapp.com/advisory/ntap-20210902-0003 https://support.apple& • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-908: Use of Uninitialized Resource •
CVSS: 7.8EPSS: 0%CPEs: 27EXPL: 0CVE-2021-3612 – kernel: joydev: zero size passed to joydev_handle_JSIOCSBTNMAP()
https://notcve.org/view.php?id=CVE-2021-3612
An out-of-bounds memory write flaw was found in the Linux kernel's joystick devices subsystem in versions before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allows a local user to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se ha encontrado un fallo de escritura en memoria fuera de límites en el kernel de Linux joystick devices subsystem en versiones anteriores a 5.9-rc1, en la manera en que el usuario llama a la ioctl JSIOCSBTNMAP. Este fallo permite a un usuario local bloquear el sistema o posiblemente escalar sus privilegios en el sistema. • https://bugzilla.redhat.com/show_bug.cgi?id=1974079 https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YKGI562LFV5MESTMVTCG5RORSBT6NGBN https://lore.kernel.org/linux-input/20210620120030.1513655-1-avlarkin82%40gmail.com https://security.netapp.com/advisory/ntap-20210805-0005 https://www.oracle.com/security-alerts/cpujul2022.html https:& • CWE-20: Improper Input Validation CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 18EXPL: 0CVE-2021-28691
https://notcve.org/view.php?id=CVE-2021-28691
Guest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer. Un uso de memoria previamente liberada desencadenado por el usuario en Linux xen-netback. Un frontend de red PV malicioso o con errores puede forzar a Linux netback a deshabilitar la interfaz y terminar el hilo del kernel de recepción asociado a la cola 0 en respuesta al envío de un paquete malformado por parte del frontend. Esta terminación del hilo del kernel conllevará un uso de memoria previamente liberada en Linux netback cuando es destruído el backend, ya que el hilo del kernel asociado a la cola 0 ya habrá salido y, por tanto, la llamada a la función kthread_stop se llevará a cabo contra un puntero obsoleto • https://security.gentoo.org/glsa/202107-30 https://security.netapp.com/advisory/ntap-20210805-0002 https://xenbits.xenproject.org/xsa/advisory-374.txt • CWE-416: Use After Free •