CVSS: 5.3EPSS: 0%CPEs: 45EXPL: 1CVE-2021-22925 – curl: Incorrect fix for CVE-2021-22898 TELNET stack contents disclosure
https://notcve.org/view.php?id=CVE-2021-22925
curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application. curl soporta la opción de línea de comandos "-t", conocida como "CURLOPT_TELNETOPTIONS" en libcurl. Debido a un fallo en el analizador de opciones para el envío de variables "NEW_ENV", libcurl podría pasar datos no inicializados de un búfer en la región stack de la memoria al servidor. Por lo tanto, podría revelar potencialmente información interna confidencial al servidor usando un protocolo de red de texto sin cifrar. • http://seclists.org/fulldisclosure/2021/Sep/39 http://seclists.org/fulldisclosure/2021/Sep/40 https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf https://hackerone.com/reports/1223882 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V https://security.gentoo.org/glsa/202212-01 https://security.netapp.com/advisory/ntap-20210902-0003 https://support.apple& • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-908: Use of Uninitialized Resource •
CVSS: 3.1EPSS: 0%CPEs: 18EXPL: 2CVE-2021-22898 – curl: TELNET stack contents disclosure
https://notcve.org/view.php?id=CVE-2021-22898
curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol. curl versiones 7.7 hasta 7.76.1 sufre de una divulgacion de información cuando la opción de línea de comandos "-t", conocida como "CURLOPT_TELNETOPTIONS" en libcurl, se usa para enviar pares de variables=contenido a servidores TELNET. Debido a un fallo en el analizador de opciones para el envío de variables NEW_ENV, podría hacer que libcurl pasara datos no inicializados de un búfer basado en la pila al servidor, resultando en una potencial divulgación de información interna confidencial al servidor que usaba un protocolo de red de texto sin cifrar A flaw was found in the way curl handled telnet protocol option for sending environment variables, which could lead to sending of uninitialized data from a stack-based buffer to the server. This issue leads to potentially revealing sensitive internal information to the server using a clear-text network protocol. • http://www.openwall.com/lists/oss-security/2021/07/21/4 https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://curl.se/docs/CVE-2021-22898.html https://github.com/curl/curl/commit/39ce47f219b09c380b81f89fe54ac586c8db6bde https://hackerone.com/reports/1176461 https://lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9e88a7041177497c%40%3Cissues.guacamole.apache.org%3E https://lists.debian.org/debian-lts-announce/2021/08/msg00017.html https://lists.debian.org/debian-lts-ann • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-908: Use of Uninitialized Resource CWE-909: Missing Initialization of Resource •
CVSS: 4.3EPSS: 0%CPEs: 72EXPL: 0CVE-2020-8284 – curl: FTP PASV command response can cause curl to connect to arbitrary host
https://notcve.org/view.php?id=CVE-2020-8284
A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions. Un servidor malicioso puede usar la respuesta FTP PASV para engañar a curl versiones 7.73.0 y anteriores, para que se conecte de nuevo a una dirección IP y puerto determinados, y de esta manera potencialmente hacer que curl extraiga información sobre servicios que de otro modo serían privados y no divulgados, por ejemplo, haciendo escaneo de puerto y extracciones del banner de servicio A malicious server can use the `PASV` response to trick curl into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions. If curl operates on a URL provided by a user, a user can exploit that and pass in a URL to a malicious FTP server instance without needing any server breach to perform the attack. • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://curl.se/docs/CVE-2020-8284.html https://hackerone.com/reports/1040166 https://lists.debian.org/debian-lts-announce/2020/12/msg00029.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DAEHE2S2QLO4AO4MEEYL75NB7SAH5PSL https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG https://security.gentoo.org/glsa/202012-14 https://securi • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 7.8EPSS: 0%CPEs: 30EXPL: 1CVE-2020-8177 – curl: Incorrect argument check can allow remote servers to overwrite local files
https://notcve.org/view.php?id=CVE-2020-8177
curl 7.20.0 through 7.70.0 is vulnerable to improper restriction of names for files and other resources that can lead too overwriting a local file when the -J flag is used. curl versiones 7.20.0 hasta 7.70.0, es vulnerable a una restricción inapropiada de nombres para archivos y otros recursos que pueden conllevar a sobrescribir demasiado un archivo local cuando el flag -J es usado A flaw was found in curl. Overwriting local files is possible when using a certain combination of command line options. Requesting content from a malicious server could lead to overwriting local files with compromised files leading to unknown effects. The highest threat from this vulnerability is to file integrity. • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://curl.se/docs/CVE-2020-8177.html https://hackerone.com/reports/887462 https://www.debian.org/security/2021/dsa-4881 https://www.oracle.com/security-alerts/cpujan2022.html https://access.redhat.com/security/cve/CVE-2020-8177 https://bugzilla.redhat.com/show_bug.cgi?id=1847915 • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE-99: Improper Control of Resource Identifiers ('Resource Injection') •
CVSS: 9.8EPSS: 9%CPEs: 30EXPL: 0CVE-2019-5482 – curl: heap buffer overflow in function tftp_receive_packet()
https://notcve.org/view.php?id=CVE-2019-5482
Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3. Un desbordamiento del búfer de la pila en el manejador de protocolo TFTP en cURL versiones 7.19.4 hasta 7.65.3. • http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00048.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00055.html https://curl.haxx.se/docs/CVE-2019-5482.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CI4QQ2RSZX4VCFM76SIWGKY6BY7UWIC https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGDVKSLY5JUNJRLYRUA6CXGQ2LM63XC3 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/me • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •