CVSS: 8.1EPSS: 0%CPEs: 11EXPL: 1CVE-2021-46143 – expat: Integer overflow in doProlog in xmlparse.c
https://notcve.org/view.php?id=CVE-2021-46143
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize. En la función doProlog en el archivo xmlparse.c en Expat (también se conoce como libexpat) versiones anteriores a 2.4.3, se presenta un desbordamiento de enteros para m_groupSize. expat (libexpat) is susceptible to a software flaw that causes process interruption. When processing a large number of prefixed XML attributes on a single tag can libexpat can terminate unexpectedly due to integer overflow. The highest threat from this vulnerability is to availability, confidentiality and integrity. • http://www.openwall.com/lists/oss-security/2022/01/17/3 https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf https://github.com/libexpat/libexpat/issues/532 https://github.com/libexpat/libexpat/pull/538 https://security.gentoo.org/glsa/202209-24 https://security.netapp.com/advisory/ntap-20220121-0006 https://www.debian.org/security/2022/dsa-5073 https://www.tenable.com/security/tns-2022-05 https://access.redhat.com/security/cve/CVE-2021-46143 https://bu • CWE-190: Integer Overflow or Wraparound •
CVSS: 9.0EPSS: 1%CPEs: 12EXPL: 2CVE-2021-45960 – expat: Large number of prefixed XML attributes on a single tag can crash libexpat
https://notcve.org/view.php?id=CVE-2021-45960
In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory). En Expat (también se conoce como libexpat) versiones anteriores a 2.4.3, un desplazamiento a la izquierda por 29 (o más) lugares en la función storeAtts en el archivo xmlparse.c puede conllevar a un comportamiento incorrecto de reasignación (por ejemplo, asignar muy pocos bytes, o sólo liberar memoria). expat (libexpat) is susceptible to a software flaw that causes process interruption. When processing a large number of prefixed XML attributes on a single tag can libexpat can terminate unexpectedly due to buffer overrun. The highest threat from this vulnerability is to availability. • http://www.openwall.com/lists/oss-security/2022/01/17/3 https://bugzilla.mozilla.org/show_bug.cgi?id=1217609 https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf https://github.com/libexpat/libexpat/issues/531 https://github.com/libexpat/libexpat/pull/534 https://security.gentoo.org/glsa/202209-24 https://security.netapp.com/advisory/ntap-20220121-0004 https://www.debian.org/security/2022/dsa-5073 https://www.tenable.com/security/tns-2022-05 https://acces • CWE-130: Improper Handling of Length Parameter Inconsistency CWE-682: Incorrect Calculation •
CVSS: 7.5EPSS: 8%CPEs: 50EXPL: 0CVE-2021-41991
https://notcve.org/view.php?id=CVE-2021-41991
The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of cache entries. The code attempts to select a less-often-used cache entry by means of a random number generator, but this is not done correctly. Remote code execution might be a slight possibility. La caché de certificados en memoria en strongSwan versiones anteriores a 5.9.4, presenta un desbordamiento de enteros remoto al recibir muchas peticiones con diferentes certificados para llenar la caché y posteriormente desencadenar la sustitución de las entradas de la caché. El código intenta seleccionar una entrada de caché menos usada mediante un generador de números aleatorios, pero esto no es realizado correctamente. • https://cert-portal.siemens.com/productcert/pdf/ssa-539476.pdf https://github.com/strongswan/strongswan/releases/tag/5.9.4 https://lists.debian.org/debian-lts-announce/2021/10/msg00014.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5FJSATD2R2XHTG4P63GCMQ2N7EWKMME5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WQSQ3BEC22NF4NCDZVCT4P3Q2ZIAJXGJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/mes • CWE-190: Integer Overflow or Wraparound •
CVSS: 9.0EPSS: 96%CPEs: 26EXPL: 8CVE-2021-40438 – Apache HTTP Server-Side Request Forgery (SSRF)
https://notcve.org/view.php?id=CVE-2021-40438
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier. Un uri-path diseñado puede causar que mod_proxy reenvíe la petición a un servidor de origen elegido por el usuario remoto. Este problema afecta a Apache HTTP Server versiones 2.4.48 y anteriores A Server-Side Request Forgery (SSRF) flaw was found in mod_proxy of httpd. This flaw allows a remote, unauthenticated attacker to make the httpd server forward requests to an arbitrary server. • https://github.com/sixpacksecurity/CVE-2021-40438 https://github.com/xiaojiangxl/CVE-2021-40438 https://github.com/Kashkovsky/CVE-2021-40438 https://github.com/sergiovks/CVE-2021-40438-Apache-2.4.48-SSRF-exploit https://github.com/BabyTeam1024/CVE-2021-40438 https://github.com/gassara-kys/CVE-2021-40438 https://github.com/Cappricio-Securities/CVE-2021-40438 https://github.com/pisut4152/Sigma-Rule-for-CVE-2021-40438-exploitation-attempt https://cert-portal.siemens.com/productcert/pdf/ • CWE-918: Server-Side Request Forgery (SSRF) •
CVSS: 7.5EPSS: 0%CPEs: 25EXPL: 0CVE-2021-34798 – NULL pointer dereference in httpd core
https://notcve.org/view.php?id=CVE-2021-34798
Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier. Unas peticiones malformadas pueden causar que el servidor haga desreferencia a un puntero NULL. Este problema afecta a Apache HTTP Server versiones 2.4.48 y anteriores A NULL pointer dereference in httpd allows an unauthenticated remote attacker to crash httpd by providing malformed HTTP requests. The highest threat from this vulnerability is to system availability. • http://httpd.apache.org/security/vulnerabilities_24.html https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf https://kc.mcafee.com/corporate/index?page=content&id=SB10379 https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E • CWE-476: NULL Pointer Dereference •