CVE-2020-27783 – python-lxml: mXSS due to the use of improper parser
https://notcve.org/view.php?id=CVE-2020-27783
A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code. Se detectó una vulnerabilidad de tipo XSS en el módulo de limpieza de python-lxml. El analizador del módulo no imitaba apropiadamente los navegadores, lo que causaba comportamientos diferentes entre el sanitizador y la página del usuario. • https://advisory.checkmarx.net/advisory/CX-2020-4286 https://bugzilla.redhat.com/show_bug.cgi?id=1901633 https://lists.debian.org/debian-lts-announce/2020/12/msg00028.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKG67GPGTV23KADT4D4GK4RMHSO4CIQL https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMHVKRUT22LVWNL3TB7HPSDHJT74Q3JK https://security.netapp.com/advisory/ntap-20210521-0003 https://www.debian.org/security/2020/dsa-481 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVE-2020-25656 – kernel: use-after-free in read in vt_do_kdgkb_ioctl
https://notcve.org/view.php?id=CVE-2020-25656
A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality. Se encontró un fallo en el kernel de Linux. • https://bugzilla.redhat.com/show_bug.cgi?id=1888726 https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html https://lkml.org/lkml/2020/10/16/84 https://lkml.org/lkml/2020/10/29/528 https://www.starwindsoftware.com/security/sw-20210325-0006 https://access.redhat.com/security/cve/CVE-2020-25656 • CWE-416: Use After Free •
CVE-2020-25710 – openldap: assertion failure in CSN normalization with invalid input
https://notcve.org/view.php?id=CVE-2020-25710
A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this vulnerability is to system availability. Se encontró un fallo en OpenLDAP en versiones anteriores a 2.4.56. Este fallo permite a un atacante que envía un paquete malicioso procesado por OpenLDAP forzar una afirmación fallida en la función csnNormalize23(). • https://bugzilla.redhat.com/show_bug.cgi?id=1899678 https://git.openldap.org/openldap/openldap/-/commit/ab3915154e69920d480205b4bf5ccb2b391a0a1f#a2feb6ed0257c21c6672793ee2f94eaadc10c72c https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E https://lists.debian.org/debian-lts-announce/2020/12/msg00008.html https://security.netapp.com/advisory/ntap-20210716- • CWE-617: Reachable Assertion •
CVE-2020-27778 – poppler: pdftohtml: access to uninitialized pointer could lead to DoS
https://notcve.org/view.php?id=CVE-2020-27778
A flaw was found in Poppler in the way certain PDF files were converted into HTML. A remote attacker could exploit this flaw by providing a malicious PDF file that, when processed by the 'pdftohtml' program, would crash the application causing a denial of service. Se encontró un fallo en Poppler en la manera en que determinados archivos PDF se convertían a HTML. Un atacante remoto podría explotar este fallo proporcionando un archivo PDF malicioso que, cuando se procesaba por el programa "pdftohtml", bloquearía la aplicación y provocaría una denegación de servicio A flaw was found in Poppler in the way certain PDF files were converted into HTML. This flaw allows a remote attacker to provide a malicious PDF file that, when processed by the 'pdftohtml' program, crashes the application, causing a denial of service. • https://bugzilla.redhat.com/show_bug.cgi?id=1900712 https://lists.debian.org/debian-lts-announce/2022/09/msg00030.html https://access.redhat.com/security/cve/CVE-2020-27778 • CWE-824: Access of Uninitialized Pointer •
CVE-2020-14351 – Linux Kernel Performance Counters Race Condition Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-14351
A flaw was found in the Linux kernel. A use-after-free memory flaw was found in the perf subsystem allowing a local attacker with permission to monitor perf events to corrupt memory and possibly escalate privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en el kernel de Linux. Se encontró un fallo de uso de la memoria previamente liberada en el subsistema perf que permitía a un atacante local con permiso para monitorear eventos de desempeño para corromper la memoria y posiblemente escalar privilegios. • https://bugzilla.redhat.com/show_bug.cgi?id=1862849 https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html https://access.redhat.com/security/cve/CVE-2020-14351 • CWE-416: Use After Free •