CVSS: 6.5EPSS: 0%CPEs: 2EXPL: 1CVE-2023-46218 – curl: information disclosure by exploiting a mixed case flaw
https://notcve.org/view.php?id=CVE-2023-46218
This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain. Esta falla permite que un servidor HTTP malicioso establezca "supercookies" en curl que luego se devuelven a más orígenes de los que están permitidos o son posibles. Esto permite que un sitio establezca cookies que luego se enviarán a sitios y dominios diferentes y no relacionados. • https://curl.se/docs/CVE-2023-46218.html https://hackerone.com/reports/2212193 https://lists.debian.org/debian-lts-announce/2023/12/msg00015.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3ZX3VW67N4ACRAPMV2QS2LVYGD7H2MVE https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UOGXU25FMMT2X6UUITQ7EZZYMJ42YWWD https://security.netapp.com/advisory/ntap-20240125-0007 https://www.debian.org/security/2023/dsa-5587 https://access.redhat • CWE-201: Insertion of Sensitive Information Into Sent Data •
CVSS: 7.5EPSS: 1%CPEs: 12EXPL: 2CVE-2023-38039 – curl: out of heap memory issue due to missing limit on header quantity
https://notcve.org/view.php?id=CVE-2023-38039
When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API. However, curl did not have a limit in how many or how large headers it would accept in a response, allowing a malicious server to stream an endless series of headers and eventually cause curl to run out of heap memory. Cuando curl recupera una respuesta HTTP, almacena los encabezados entrantes para que se pueda acceder a ellos más tarde a través de la API de encabezados libcurl. Sin embargo, curl no tenía un límite en cuanto a la cantidad o el tamaño de encabezados que aceptaría en una respuesta, lo que permitía que un servidor malicioso transmitiera una serie interminable de encabezados y, finalmente, provocara que curl se quedara sin memoria dinámica. A flaw was found in the Curl package. Curl allows a malicious server to stream an endless series of headers to a client due to missing limit on header quantity, eventually causing curl to run out of heap memory, which may lead to a crash. • https://github.com/Smartkeyss/CVE-2023-38039 http://seclists.org/fulldisclosure/2023/Oct/17 http://seclists.org/fulldisclosure/2024/Jan/34 http://seclists.org/fulldisclosure/2024/Jan/37 http://seclists.org/fulldisclosure/2024/Jan/38 https://hackerone.com/reports/2072338 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5DCZMYODALBLVOXVJEN2LF2MLANEYL4F https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6KGKB2JNZVT276JYSKI6FV2VFJUGDOJ • CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 5.9EPSS: 0%CPEs: 14EXPL: 1CVE-2023-28320
https://notcve.org/view.php?id=CVE-2023-28320
A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using `alarm()` and `siglongjmp()`. When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave. • http://seclists.org/fulldisclosure/2023/Jul/47 http://seclists.org/fulldisclosure/2023/Jul/48 http://seclists.org/fulldisclosure/2023/Jul/52 https://hackerone.com/reports/1929597 https://security.gentoo.org/glsa/202310-12 https://security.netapp.com/advisory/ntap-20230609-0009 https://support.apple.com/kb/HT213843 https://support.apple.com/kb/HT213844 https://support.apple.com/kb/HT213845 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.5EPSS: 0%CPEs: 14EXPL: 1CVE-2023-28319 – curl: use after free in SSH sha256 fingerprint check
https://notcve.org/view.php?id=CVE-2023-28319
A use after free vulnerability exists in curl <v8.1.0 in the way libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. When this check fails, libcurl would free the memory for the fingerprint before it returns an error message containing the (now freed) hash. This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or otherwise get leaked and revealed. A use-after-free flaw was found in the Curl package. This flaw risks inserting sensitive heap-based data into the error message that users might see or is otherwise leaked and revealed. • http://seclists.org/fulldisclosure/2023/Jul/47 http://seclists.org/fulldisclosure/2023/Jul/48 http://seclists.org/fulldisclosure/2023/Jul/52 https://hackerone.com/reports/1913733 https://security.gentoo.org/glsa/202310-12 https://security.netapp.com/advisory/ntap-20230609-0009 https://support.apple.com/kb/HT213843 https://support.apple.com/kb/HT213844 https://support.apple.com/kb/HT213845 https://access.redhat.com/security/cve/CVE-2023-28319 https://bugzilla.redhat.com/ • CWE-416: Use After Free •
CVSS: 5.9EPSS: 0%CPEs: 17EXPL: 1CVE-2023-28321 – curl: IDN wildcard match may lead to Improper Cerificate Validation
https://notcve.org/view.php?id=CVE-2023-28321
An improper certificate validation vulnerability exists in curl <v8.1.0 in the way it supports matching of wildcard patterns when listed as "Subject Alternative Name" in TLS server certificates. curl can be built to use its own name matching function for TLS rather than one provided by a TLS library. This private wildcard matching function would match IDN (International Domain Name) hosts incorrectly and could as a result accept patterns that otherwise should mismatch. IDN hostnames are converted to puny code before used for certificate checks. Puny coded names always start with `xn--` and should not be allowed to pattern match, but the wildcard check in curl could still check for `x*`, which would match even though the IDN name most likely contained nothing even resembling an `x`. A flaw was found in the Curl package. • http://seclists.org/fulldisclosure/2023/Jul/47 http://seclists.org/fulldisclosure/2023/Jul/48 http://seclists.org/fulldisclosure/2023/Jul/52 https://hackerone.com/reports/1950627 https://lists.debian.org/debian-lts-announce/2023/10/msg00016.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F4I75RDGX5ULSSCBE5BF3P5I5SFO7ULQ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z2LIWHWKOVH24COGGBCVOWDXXIUPKOMK https://security.gentoo • CWE-295: Improper Certificate Validation •