CVSS: 7.8EPSS: 0%CPEs: 12EXPL: 1CVE-2021-3516 – libxml2: Use-after-free in xmlEncodeEntitiesInternal() in entities.c
https://notcve.org/view.php?id=CVE-2021-3516
There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability. Se encontró un fallo en xmllint de libxml2 en versiones anteriores a 2.9.11. Un atacante que es capaz de enviar un archivo diseñado para ser procesado por xmllint podría desencadenar un uso de la memoria previamente liberada. • https://bugzilla.redhat.com/show_bug.cgi?id=1954225 https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539 https://gitlab.gnome.org/GNOME/libxml2/-/issues/230 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& • CWE-416: Use After Free •
CVSS: 8.6EPSS: 1%CPEs: 34EXPL: 0CVE-2021-3517 – libxml2: Heap-based buffer overflow in xmlEncodeEntitiesInternal() in entities.c
https://notcve.org/view.php?id=CVE-2021-3517
There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application. Se presenta un fallo en la funcionalidad xml entity encoding de libxml2 en versiones anteriores a 2.9.11. Un atacante que sea capaz de proporcionar un archivo diseñado para que sea procesado por una aplicación vinculada con la funcionalidad afectada de libxml2 podría desencadenar una lectura fuera de los límites. • https://bugzilla.redhat.com/show_bug.cgi?id=1954232 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/2021/05/msg00008.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6 https://lists.fedoraproject.org/archives/list/pack • CWE-787: Out-of-bounds Write •
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: 7.5EPSS: 1%CPEs: 7EXPL: 0CVE-2021-21702 – Null Dereference in SoapClient
https://notcve.org/view.php?id=CVE-2021-21702
In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, when using SOAP extension to connect to a SOAP server, a malicious SOAP server could return malformed XML data as a response that would cause PHP to access a null pointer and thus cause a crash. En PHP versiones 7.3.x por debajo de 7.3.27, 7.4.x por debajo de 7.4.15 y 8.0.x por debajo de 8.0.2, cuando se usa la extensión SOAP para conectarse a un servidor SOAP, un servidor SOAP malicioso podría devolver datos XML malformados como respuesta eso haría que PHP acceda a un puntero null y, por tanto, causaría un bloqueo A NULL pointer dereference issue is in the SOAP extension of PHP. More specifically, the flaw occurs in the SoapClient when parsing a WSDL document due to improper checking of a child node name. A malicious or compromised server replies with a crafted WSDL document, leading to a denial of service of the SoapClient accessing said document. The highest threat from this vulnerability is to system availability. • https://bugs.php.net/bug.php?id=80672 https://lists.debian.org/debian-lts-announce/2021/07/msg00008.html https://security.gentoo.org/glsa/202105-23 https://security.netapp.com/advisory/ntap-20210312-0005 https://www.debian.org/security/2021/dsa-4856 https://www.oracle.com/security-alerts/cpuoct2021.html https://www.tenable.com/security/tns-2021-14 https://access.redhat.com/security/cve/CVE-2021-21702 https://bugzilla.redhat.com/show_bug.cgi?id=1925272 • CWE-476: NULL Pointer Dereference •