CVSS: 8.1EPSS: 0%CPEs: 18EXPL: 0CVE-2022-42915 – curl: HTTP proxy double-free
https://notcve.org/view.php?id=CVE-2022-42915
curl before 7.86.0 has a double free. If curl is told to use an HTTP proxy for a transfer with a non-HTTP(S) URL, it sets up the connection to the remote server by issuing a CONNECT request to the proxy, and then tunnels the rest of the protocol through. An HTTP proxy might refuse this request (HTTP proxies often only allow outgoing connections to specific port numbers, like 443 for HTTPS) and instead return a non-200 status code to the client. Due to flaws in the error/cleanup handling, this could trigger a double free in curl if one of the following schemes were used in the URL for the transfer: dict, gopher, gophers, ldap, ldaps, rtmp, rtmps, or telnet. The earliest affected version is 7.77.0. curl antes de la versión 7.86.0 tiene un double free. • http://seclists.org/fulldisclosure/2023/Jan/19 http://seclists.org/fulldisclosure/2023/Jan/20 https://curl.se/docs/CVE-2022-42915.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/37YEVVC6NAF6H7UHH6YAUY5QEVY6LIH2 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVU3IMZCKR4VE6KJ4GCWRL2ILLC6OV76 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q27V5YYMXUVI6PRZQVECON32XPVWTKDK https://security.gentoo. • CWE-415: Double Free •
CVSS: 7.5EPSS: 0%CPEs: 9EXPL: 0CVE-2022-42916 – curl: HSTS bypass via IDN
https://notcve.org/view.php?id=CVE-2022-42916
In curl before 7.86.0, the HSTS check could be bypassed to trick it into staying with HTTP. Using its HSTS support, curl can be instructed to use HTTPS directly (instead of using an insecure cleartext HTTP step) even when HTTP is provided in the URL. This mechanism could be bypassed if the host name in the given URL uses IDN characters that get replaced with ASCII counterparts as part of the IDN conversion, e.g., using the character UTF-8 U+3002 (IDEOGRAPHIC FULL STOP) instead of the common ASCII full stop of U+002E (.). The earliest affected version is 7.77.0 2021-05-26. En curl anterior a 7.86.0, se podía omitir la verificación HSTS para engañarlo y que se quedara con HTTP. • http://seclists.org/fulldisclosure/2023/Jan/19 http://seclists.org/fulldisclosure/2023/Jan/20 http://www.openwall.com/lists/oss-security/2022/12/21/1 https://curl.se/docs/CVE-2022-42916.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/37YEVVC6NAF6H7UHH6YAUY5QEVY6LIH2 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVU3IMZCKR4VE6KJ4GCWRL2ILLC6OV76 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorap • CWE-319: Cleartext Transmission of Sensitive Information •
CVSS: 3.7EPSS: 0%CPEs: 21EXPL: 1CVE-2022-35252 – curl: Incorrect handling of control code characters in cookies
https://notcve.org/view.php?id=CVE-2022-35252
When curl is used to retrieve and parse cookies from a HTTP(S) server, itaccepts cookies using control codes that when later are sent back to a HTTPserver might make the server return 400 responses. Effectively allowing a"sister site" to deny service to all siblings. Cuando curl es usado para recuperar y analizar las cookies de un servidor HTTP(S), acepta las cookies usando códigos de control que cuando son enviados de vuelta a un servidor HTTP podrían hacer que el servidor devolviera respuestas 400. En efecto, permite que un "sitio hermano" deniegue el servicio a todos los hermanos. A vulnerability found in curl. • http://seclists.org/fulldisclosure/2023/Jan/20 http://seclists.org/fulldisclosure/2023/Jan/21 https://hackerone.com/reports/1613943 https://lists.debian.org/debian-lts-announce/2023/01/msg00028.html https://security.gentoo.org/glsa/202212-01 https://security.netapp.com/advisory/ntap-20220930-0005 https://support.apple.com/kb/HT213603 https://support.apple.com/kb/HT213604 https://access.redhat.com/security/cve/CVE-2022-35252 https://bugzilla.redhat.com/show_bug.cgi?id=212071 • CWE-20: Improper Input Validation CWE-1286: Improper Validation of Syntactic Correctness of Input •
CVSS: 4.3EPSS: 0%CPEs: 31EXPL: 1CVE-2022-32205
https://notcve.org/view.php?id=CVE-2022-32205
A malicious server can serve excessive amounts of `Set-Cookie:` headers in a HTTP response to curl and curl < 7.84.0 stores all of them. A sufficiently large amount of (big) cookies make subsequent HTTP requests to this, or other servers to which the cookies match, create requests that become larger than the threshold that curl uses internally to avoid sending crazy large requests (1048576 bytes) and instead returns an error.This denial state might remain for as long as the same cookies are kept, match and haven't expired. Due to cookie matching rules, a server on `foo.example.com` can set cookies that also would match for `bar.example.com`, making it it possible for a "sister server" to effectively cause a denial of service for a sibling site on the same second level domain using this method. Un servidor malicioso puede servir cantidades excesivas de encabezados "Set-Cookie:" en una respuesta HTTP a curl y curl versiones anteriores a 7.84.0 las almacena todas. Una cantidad suficientemente grande de cookies (grandes) hace que las subsiguientes peticiones HTTP a este, o a otros servidores con los que coincidan las cookies, creen peticiones que superen el umbral que curl usa internamente para evitar el envío de peticiones locamente grandes (1048576 bytes) y en su lugar devuelva un error. • http://seclists.org/fulldisclosure/2022/Oct/28 http://seclists.org/fulldisclosure/2022/Oct/41 https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf https://hackerone.com/reports/1569946 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY https://security.gentoo.org/glsa/202212-01 https://security.netapp.com/advisory/ntap-20220915-0003 https://support.apple.com/kb/HT213488 https://www.debian.org/security/2022/dsa- • CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 6.5EPSS: 0%CPEs: 33EXPL: 1CVE-2022-32206 – curl: HTTP compression denial of service
https://notcve.org/view.php?id=CVE-2022-32206
curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a "malloc bomb", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors. curl versiones anteriores a 7.84.0, soporta algoritmos de compresión HTTP "encadenados", lo que significa que una respuesta al servidor puede ser comprimida múltiples veces y potencialmente con diferentes algoritmos. El número de "eslabones" aceptables en esta "cadena de descompresión" era ilimitado, lo que permitía a un servidor malicioso insertar un número prácticamente ilimitado de pasos de compresión. El uso de una cadena de descompresión de este tipo podía resultar en una "bomba de malloc", haciendo que curl acabara gastando enormes cantidades de memoria de montón asignada, o intentando y devolviendo errores de memoria A vulnerability was found in curl. This issue occurs because the number of acceptable "links" in the "decompression chain" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps. • http://seclists.org/fulldisclosure/2022/Oct/28 http://seclists.org/fulldisclosure/2022/Oct/41 http://www.openwall.com/lists/oss-security/2023/02/15/3 https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf https://hackerone.com/reports/1570651 https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY https://security.gentoo.org/glsa/202212-01 https:/ • CWE-770: Allocation of Resources Without Limits or Throttling •