CVSS: 8.8EPSS: 0%CPEs: 22EXPL: 0CVE-2021-3518 – libxml2: Use-after-free in xmlXIncludeDoProcess() in xinclude.c
https://notcve.org/view.php?id=CVE-2021-3518
There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability. Se presenta un fallo en libxml2 en versiones anteriores a 2.9.11. Un atacante que pueda enviar un archivo diseñado para que sea procesado por una aplicación vinculada con libxml2 podría desencadenar un uso de la memoria previamente liberada. • http://seclists.org/fulldisclosure/2021/Jul/54 http://seclists.org/fulldisclosure/2021/Jul/55 http://seclists.org/fulldisclosure/2021/Jul/58 http://seclists.org/fulldisclosure/2021/Jul/59 https://bugzilla.redhat.com/show_bug.cgi?id=1954242 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/d • CWE-416: Use After Free •
CVSS: 7.5EPSS: 1%CPEs: 25EXPL: 0CVE-2021-3537 – libxml2: NULL pointer dereference when post-validating mixed content parsed in recovery mode
https://notcve.org/view.php?id=CVE-2021-3537
A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability. Una vulnerabilidad encontrada en libxml2 en versiones anteriores a 2.9.11 muestra que no propagó errores al analizar el contenido mixto XML, causando una desreferencia de NULL. Si un documento XML que no es confiable fue analizado en modo de recuperación y pos-comprobado, el fallo podría usarse para bloquear la aplicación. • https://bugzilla.redhat.com/show_bug.cgi?id=1956522 https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV https://security.gentoo.org/glsa/202107-05 https://security.netapp.com/advisory/ntap-20210625-0002 https://www.oracle.com/security-alerts/cpuapr2022.html • CWE-476: NULL Pointer Dereference •
CVSS: 5.7EPSS: 0%CPEs: 22EXPL: 0CVE-2021-3426 – python: Information disclosure via pydoc
https://notcve.org/view.php?id=CVE-2021-3426
There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7. Se presenta un fallo en pydoc de Python versión 3. • https://bugzilla.redhat.com/show_bug.cgi?id=1935913 https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25HVHLBGO2KNPXJ3G426QEYSSCECJDU5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BF2K7HEWADHN6P52R3QLIOX27U3DJ4HI https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message&#x • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 6.1EPSS: 0%CPEs: 8EXPL: 0CVE-2021-31879
https://notcve.org/view.php?id=CVE-2021-31879
GNU Wget through 1.21.1 does not omit the Authorization header upon a redirect to a different origin, a related issue to CVE-2018-1000007. GNU Wget versiones hasta 1.21.1, no omite el encabezado Authorization tras un redireccionamiento a un origen diferente, un problema relacionado con CVE-2018-1000007 • https://mail.gnu.org/archive/html/bug-wget/2021-02/msg00002.html https://security.netapp.com/advisory/ntap-20210618-0002 • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •
CVSS: 8.1EPSS: 1%CPEs: 8EXPL: 0CVE-2021-20305 – nettle: Out of bounds memory access in signature verification
https://notcve.org/view.php?id=CVE-2021-20305
A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability. Se encontró un fallo en Nettle en versiones anteriores a 3.7.2, donde varias funciones de comprobación de firma de Nettle (GOST DSA, EDDSA y ECDSA) resultan en la función de multiplicación del punto Elliptic Curve Cryptography (ECC) ser llamados con escaladores fuera de rango, posiblemente resultando en resultados incorrectos. Este fallo permite a un atacante forzar una firma no válida, causando un fallo de aserción o una posible validación. • https://bugzilla.redhat.com/show_bug.cgi?id=1942533 https://lists.debian.org/debian-lts-announce/2021/09/msg00008.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQKWVVMAIDAJ7YAA3VVO32BHLDOH2E63 https://security.gentoo.org/glsa/202105-31 https://security.netapp.com/advisory/ntap-20211022-0002 https://www.debian.org/security/2021/dsa-4933 https://access.redhat.com/security/cve/CVE-2021-20305 • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-787: Out-of-bounds Write •