CVSS: 7.5EPSS: 10%CPEs: 25EXPL: 0CVE-2021-34798 – NULL pointer dereference in httpd core
https://notcve.org/view.php?id=CVE-2021-34798
16 Sep 2021 — 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 • CWE-476: NULL Pointer Dereference •
CVSS: 6.1EPSS: 0%CPEs: 46EXPL: 1CVE-2021-22947 – curl: Server responses received before STARTTLS processed after TLS handshake
https://notcve.org/view.php?id=CVE-2021-22947
15 Sep 2021 — When curl >= 7.20.0 and <= 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can respond and send back multiple responses at once that curl caches. curl would then upgrade to TLS but not flush the in-queue of cached responses but instead continue using and trustingthe responses it got *before* the TLS handshake as if they were authenticated.Using this flaw, it allows a Man-In-The-Middle attacker to first inject the fake responses, then pass-thro... • http://seclists.org/fulldisclosure/2022/Mar/29 • CWE-310: Cryptographic Issues CWE-319: Cleartext Transmission of Sensitive Information CWE-345: Insufficient Verification of Data Authenticity •
CVSS: 9.1EPSS: 0%CPEs: 29EXPL: 1CVE-2021-22945 – Gentoo Linux Security Advisory 202212-01
https://notcve.org/view.php?id=CVE-2021-22945
15 Sep 2021 — When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*. Cuando se envían datos a un servidor MQTT, libcurl versiones anteriores a 7.73.0, incluyéndola y 7.78.0, podría en algunas circunstancias, mantener erróneamente un puntero a un área de memoria ya liberada y usarlo de nuevo en una llamada posterior para enviar datos y también... • http://seclists.org/fulldisclosure/2022/Mar/29 • CWE-415: Double Free •
CVSS: 7.5EPSS: 0%CPEs: 49EXPL: 1CVE-2021-22946 – curl: Requirement to use TLS not properly enforced for IMAP, POP3, and FTP protocols
https://notcve.org/view.php?id=CVE-2021-22946
15 Sep 2021 — A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitiv... • http://seclists.org/fulldisclosure/2022/Mar/29 • CWE-319: Cleartext Transmission of Sensitive Information CWE-325: Missing Cryptographic Step •
CVSS: 6.5EPSS: 0%CPEs: 10EXPL: 0CVE-2021-3634 – libssh: possible heap-based buffer overflow when rekeying
https://notcve.org/view.php?id=CVE-2021-3634
26 Aug 2021 — A flaw has been found in libssh in versions prior to 0.9.6. The SSH protocol keeps track of two shared secrets during the lifetime of the session. One of them is called secret_hash and the other session_id. Initially, both of them are the same, but after key re-exchange, previous session_id is kept and used as an input to new secret_hash. Historically, both of these buffers had shared length variable, which worked as long as these buffers were same. • https://bugzilla.redhat.com/show_bug.cgi?id=1978810 • CWE-787: Out-of-bounds Write •
CVSS: 7.4EPSS: 0%CPEs: 56EXPL: 0CVE-2021-3712 – Read buffer overruns processing ASN.1 strings
https://notcve.org/view.php?id=CVE-2021-3712
24 Aug 2021 — ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL (0) byte. Although not a strict requirement, ASN.1 strings that are parsed using OpenSSL's own "d2i" functions (and other similar parsing functions) as well as any string whose value has been set with the ASN1_STRING_set... • http://www.openwall.com/lists/oss-security/2021/08/26/2 • CWE-125: Out-of-bounds Read •
CVSS: 6.5EPSS: 0%CPEs: 26EXPL: 1CVE-2021-22922 – curl: Content not matching hash in Metalink is not being discarded
https://notcve.org/view.php?id=CVE-2021-22922
05 Aug 2021 — When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and theclient can then download the file from one or several of them. In a serial orparallel manner.If one of the servers hosting the contents has been breached and the contentsof the specific file on that server is replace... • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf • CWE-20: Improper Input Validation CWE-755: Improper Handling of Exceptional Conditions CWE-840: Business Logic Errors •
CVSS: 5.7EPSS: 0%CPEs: 26EXPL: 1CVE-2021-22923 – curl: Metalink download sends credentials
https://notcve.org/view.php?id=CVE-2021-22923
05 Aug 2021 — When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened. Cuando es instruido a curl de obtener contenidos usando la funcionalidad metalink, y se usan un nombre de usuario y una contras... • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf • CWE-319: Cleartext Transmission of Sensitive Information CWE-522: Insufficiently Protected Credentials •
CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-32785 – Format string bug in the Redis cache implementation
https://notcve.org/view.php?id=CVE-2021-32785
22 Jul 2021 — mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. When mod_auth_openidc versions prior to 2.4.9 are configured to use an unencrypted Redis cache (`OIDCCacheEncrypt off`, `OIDCSessionType server-cache`, `OIDCCacheType redis`), `mod_auth_openidc` wrongly performed argument interpolation before passing Redis requests to `hiredis`, which would perform it again and l... • https://github.com/zmartzone/mod_auth_openidc/commit/dc672688dc1f2db7df8ad4abebc367116017a449 • CWE-134: Use of Externally-Controlled Format String •
CVSS: 4.3EPSS: 0%CPEs: 60EXPL: 2CVE-2021-22924 – curl: Bad connection reuse due to flawed path name checks
https://notcve.org/view.php?id=CVE-2021-22924
22 Jul 2021 — libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' whic... • https://github.com/Trinadh465/external_curl_AOSP10_r33_CVE-2021-22924 • CWE-20: Improper Input Validation CWE-295: Improper Certificate Validation CWE-706: Use of Incorrectly-Resolved Name or Reference •