CVSS: 7.5EPSS: 27%CPEs: 28EXPL: 1CVE-2021-4044 – Invalid handling of X509_verify_cert() internal errors in libssl
https://notcve.org/view.php?id=CVE-2021-4044
14 Dec 2021 — Internally libssl in OpenSSL calls X509_verify_cert() on the client side to verify a certificate supplied by a server. That function may return a negative return value to indicate an internal error (for example out of memory). Such a negative return value is mishandled by OpenSSL and will cause an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate success and a subsequent call to SSL_get_error() to return the value SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be ... • https://github.com/phirojshah/CVE-2021-4044 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 6.5EPSS: 1%CPEs: 7EXPL: 0CVE-2021-3671 – Ubuntu Security Notice USN-5142-2
https://notcve.org/view.php?id=CVE-2021-3671
12 Oct 2021 — A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server. Se ha encontrado una desreferencia de puntero null en la forma en que el servidor kerberos de Samba manejaba el sname faltante en TGS-REQ (Ticket Granting Server - Request). Un usuario autenticado podría usar este fallo para bloquear el servidor samba Isaac Boukris and Andrew Bartlett discovered that H... • https://bugzilla.redhat.com/show_bug.cgi?id=2013080%2C • CWE-476: NULL Pointer Dereference •
CVSS: 6.3EPSS: 0%CPEs: 4EXPL: 1CVE-2021-3631 – libvirt: Insecure sVirt label generation
https://notcve.org/view.php?id=CVE-2021-3631
01 Oct 2021 — A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity. Se ha encontrado un fallo en libvirt mientras genera pares de categorías MCS de SELinux para las etiquetas dinámicas de las máquinas virtuales. Este defecto permite que un huésped explotado acceda a ar... • https://access.redhat.com/errata/RHSA-2021:3631 • CWE-732: Incorrect Permission Assignment for Critical Resource •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-3667 – libvirt: Improper locking on ACL failure in virStoragePoolLookupByTargetPath API
https://notcve.org/view.php?id=CVE-2021-3667
01 Oct 2021 — An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in the storagePoolLookupByTargetPath function where a locked virStoragePoolObj object is not properly released on ACL permission failure. Clients connecting to the read-write socket with limited ACL permissions could use this flaw to acquire the lock and prevent other users from accessing storage pool/volume APIs, resulting in a denial of service condition. The highest threat from this vulnerability is to s... • https://bugzilla.redhat.com/show_bug.cgi?id=1986094 • CWE-667: Improper Locking •
CVSS: 7.0EPSS: 0%CPEs: 18EXPL: 0CVE-2021-41617 – openssh: privilege escalation when AuthorizedKeysCommand or AuthorizedPrincipalsCommand are configured
https://notcve.org/view.php?id=CVE-2021-41617
26 Sep 2021 — sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user. sshd en OpenSSH versiones 6.2 hasta 8.x anteriores a 8.8, cuando son usadas determinadas configuraciones... • https://bugzilla.suse.com/show_bug.cgi?id=1190975 • CWE-273: Improper Check for Dropped Privileges •
CVSS: 6.5EPSS: 0%CPEs: 27EXPL: 1CVE-2021-3733 – python: urllib: Regular expression DoS in AbstractBasicAuthHandler
https://notcve.org/view.php?id=CVE-2021-3733
17 Sep 2021 — There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability. Se presenta un fallo en la clase AbstractBasicAuthHandler de urllib. Un atacante que controle un servidor H... • https://bugs.python.org/issue43075 • CWE-400: Uncontrolled Resource Consumption •
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: 5.3EPSS: 16%CPEs: 5EXPL: 3CVE-2016-20012
https://notcve.org/view.php?id=CVE-2016-20012
15 Sep 2021 — OpenSSH through 8.7 allows remote attackers, who have a suspicion that a certain combination of username and public key is known to an SSH server, to test whether this suspicion is correct. This occurs because a challenge is sent only when that combination could be valid for a login session. NOTE: the vendor does not recognize user enumeration as a vulnerability for this product ** EN DISPTUTA ** OpenSSH versiones hasta 8.7, permite a atacantes remotos, que presentan la sospecha de que una determinada combi... • https://github.com/aztec-eagle/cve-2016-20012 •
CVSS: 7.8EPSS: 0%CPEs: 6EXPL: 1CVE-2021-3778 – Heap-based Buffer Overflow in vim/vim
https://notcve.org/view.php?id=CVE-2021-3778
15 Sep 2021 — vim is vulnerable to Heap-based Buffer Overflow vim es vulnerable a un desbordamiento del búfer en la región Heap de la memoria A flaw was found in vim. A possible heap-based buffer overflow could allow an attacker to input a specially crafted file leading to a crash or code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Brian Carpenter discovered that vim incorrectly handled memory when opening certain files. If a user was tric... • http://www.openwall.com/lists/oss-security/2021/10/01/1 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 8.2EPSS: 0%CPEs: 6EXPL: 1CVE-2021-3796 – Use After Free in vim/vim
https://notcve.org/view.php?id=CVE-2021-3796
15 Sep 2021 — vim is vulnerable to Use After Free vim es vulnerable a un Uso de memoria Previamente Liberada A use-after-free vulnerability in vim could allow an attacker to input a specially crafted file leading to memory corruption and a potentially exploitable crash or code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Brian Carpenter discovered that vim incorrectly handled memory when opening certain files. If a user was tricked into ope... • http://www.openwall.com/lists/oss-security/2021/10/01/1 • CWE-416: Use After Free •