CVE-2021-20277 – samba: Out of bounds read in AD DC LDAP server
https://notcve.org/view.php?id=CVE-2021-20277
A flaw was found in Samba's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability. Se encontró un fallo en libldb de Samba. Múltiples espacios iniciales consecutivos en un atributo LDAP pueden conllevar a una escritura de memoria fuera de los límites, conllevando a un bloqueo del proceso del servidor LDAP que maneja la petición. • https://bugzilla.redhat.com/show_bug.cgi?id=1941402 https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24 https://security.gentoo.org/glsa/202105-22 ht • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVE-2020-1946 – Apache SpamAssassin has an OS Command Injection vulnerability
https://notcve.org/view.php?id=CVE-2020-1946
In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, users should only use update channels or 3rd party .cf files from trusted places. En Apache SpamAssassin anterior a versión 3.4.5, los archivos de configuración de reglas maliciosas (.cf) se pueden configurar para ejecutar comandos del sistema sin ningún resultado ni errores. Con esto, las explotaciones se pueden inyectar en varios escenarios. • https://lists.debian.org/debian-lts-announce/2021/04/msg00000.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7V2SBVTKVLFFT36ECJQ7TQ7KAQCQZDRZ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JFBFRIG5TX23NF4ND6OAKKY7I6TLRCCP https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKAXYBKBMQOLIW6UKASJCAZRBOIYS4RL https://s.apache.org/3r1wh https://security.gentoo.org/glsa/202105-26 https://www.debian.or • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •
CVE-2021-3466
https://notcve.org/view.php?id=CVE-2021-3466
A flaw was found in libmicrohttpd. A missing bounds check in the post_process_urlencoded function leads to a buffer overflow, allowing a remote attacker to write arbitrary data in an application that uses libmicrohttpd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Only version 0.9.70 is vulnerable. Se ha encontrado un fallo en libmicrohttpd. • https://bugzilla.redhat.com/show_bug.cgi?id=1939127 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4334XJNDJPYQNFE6S3S2KUJJ7TMHYCWL https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/75HDMREKITMGPGE62NP7KE62ZJVLETXN https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K5NEPVGP3L2CZHLZ4UB44PEILHKPDBOG https://security.gentoo.org/glsa/202311-08 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVE-2021-3409
https://notcve.org/view.php?id=CVE-2021-3409
The patch for CVE-2020-17380/CVE-2020-25085 was found to be ineffective, thus making QEMU vulnerable to the out-of-bounds read/write access issues previously found in the SDHCI controller emulation code. This flaw allows a malicious privileged guest to crash the QEMU process on the host, resulting in a denial of service or potential code execution. QEMU up to (including) 5.2.0 is affected by this. Se detectó que el parche para CVE-2020-17380/CVE-2020-25085 era ineficaz, por lo que QEMU era vulnerable a problemas de acceso de lectura y escritura fuera de límites que se encontraban anteriormente en el código de emulación del controlador SDHCI. Este fallo permite a un invitado privilegiado malicioso bloquear el proceso QEMU en el host, resultando en una denegación de servicio o una posible ejecución de código. • https://bugzilla.redhat.com/show_bug.cgi?id=1928146 https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html https://security.gentoo.org/glsa/202208-27 https://security.netapp.com/advisory/ntap-20210507-0001 https://www.openwall.com/lists/oss-security/2021/03/09/1 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVE-2021-3392
https://notcve.org/view.php?id=CVE-2021-3392
A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req' from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected. Se encontró un fallo de uso de la memoria previamente liberada en el emulador MegaRAID de QEMU. • https://bugs.launchpad.net/qemu/+bug/1914236 https://bugzilla.redhat.com/show_bug.cgi?id=1924042 https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html https://security.netapp.com/advisory/ntap-20210507-0001 • CWE-416: Use After Free •