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Search Results (327 CVEs found)
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2022-27781 | 5 Debian, Haxx, Netapp and 2 more | 17 Debian Linux, Curl, Clustered Data Ontap and 14 more | 2026-04-16 | 7.5 High |
| libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation. | ||||
| CVE-2021-3712 | 8 Debian, Mcafee, Netapp and 5 more | 36 Debian Linux, Epolicy Orchestrator, Clustered Data Ontap and 33 more | 2026-04-16 | 7.4 High |
| 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() function will additionally NUL terminate the byte array in the ASN1_STRING structure. However, it is possible for applications to directly construct valid ASN1_STRING structures which do not NUL terminate the byte array by directly setting the "data" and "length" fields in the ASN1_STRING array. This can also happen by using the ASN1_STRING_set0() function. Numerous OpenSSL functions that print ASN.1 data have been found to assume that the ASN1_STRING byte array will be NUL terminated, even though this is not guaranteed for strings that have been directly constructed. Where an application requests an ASN.1 structure to be printed, and where that ASN.1 structure contains ASN1_STRINGs that have been directly constructed by the application without NUL terminating the "data" field, then a read buffer overrun can occur. The same thing can also occur during name constraints processing of certificates (for example if a certificate has been directly constructed by the application instead of loading it via the OpenSSL parsing functions, and the certificate contains non NUL terminated ASN1_STRING structures). It can also occur in the X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. If a malicious actor can cause an application to directly construct an ASN1_STRING and then process it through one of the affected OpenSSL functions then this issue could be hit. This might result in a crash (causing a Denial of Service attack). It could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext). Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k). Fixed in OpenSSL 1.0.2za (Affected 1.0.2-1.0.2y). | ||||
| CVE-2021-23840 | 8 Debian, Fujitsu, Mcafee and 5 more | 31 Debian Linux, M10-1, M10-1 Firmware and 28 more | 2026-04-16 | 7.5 High |
| Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). | ||||
| CVE-2018-16840 | 3 Canonical, Haxx, Redhat | 3 Ubuntu Linux, Curl, Jboss Core Services | 2026-04-16 | 9.8 Critical |
| A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up an 'easy' handle in the `Curl_close()` function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct. | ||||
| CVE-2016-8623 | 2 Haxx, Redhat | 3 Curl, Jboss Core Services, Rhel Software Collections | 2026-04-16 | N/A |
| A flaw was found in curl before version 7.51.0. The way curl handles cookies permits other threads to trigger a use-after-free leading to information disclosure. | ||||
| CVE-2016-8624 | 2 Haxx, Redhat | 3 Curl, Jboss Core Services, Rhel Software Collections | 2026-04-16 | N/A |
| curl before version 7.51.0 doesn't parse the authority component of the URL correctly when the host name part ends with a '#' character, and could instead be tricked into connecting to a different host. This may have security implications if you for example use an URL parser that follows the RFC to check for allowed domains before using curl to request them. | ||||
| CVE-2016-8615 | 2 Haxx, Redhat | 3 Curl, Jboss Core Services, Rhel Software Collections | 2026-04-16 | N/A |
| A flaw was found in curl before version 7.51. If cookie state is written into a cookie jar file that is later read back and used for subsequent requests, a malicious HTTP server can inject new cookies for arbitrary domains into said cookie jar. | ||||
| CVE-2016-8621 | 2 Haxx, Redhat | 3 Curl, Jboss Core Services, Rhel Software Collections | 2026-04-16 | N/A |
| The `curl_getdate` function in curl before version 7.51.0 is vulnerable to an out of bounds read if it receives an input with one digit short. | ||||
| CVE-2016-8617 | 2 Haxx, Redhat | 3 Curl, Jboss Core Services, Rhel Software Collections | 2026-04-16 | N/A |
| The base64 encode function in curl before version 7.51.0 is prone to a buffer being under allocated in 32bit systems if it receives at least 1Gb as input via `CURLOPT_USERNAME`. | ||||
| CVE-2026-3234 | 2 Apache, Redhat | 3 Mod Proxy Cluster, Enterprise Linux, Jboss Core Services | 2026-04-16 | 4.3 Medium |
| A flaw was found in mod_proxy_cluster. This vulnerability, a Carriage Return Line Feed (CRLF) injection in the decodeenc() function, allows a remote attacker to bypass input validation. By injecting CRLF sequences into the cluster configuration, an attacker can corrupt the response body of INFO endpoint responses. Exploitation requires network access to the MCMP protocol port, but no authentication is needed. | ||||
| CVE-2017-1000257 | 3 Debian, Haxx, Redhat | 5 Debian Linux, Libcurl, Enterprise Linux and 2 more | 2026-04-15 | 9.1 Critical |
| An IMAP FETCH response line indicates the size of the returned data, in number of bytes. When that response says the data is zero bytes, libcurl would pass on that (non-existing) data with a pointer and the size (zero) to the deliver-data function. libcurl's deliver-data function treats zero as a magic number and invokes strlen() on the data to figure out the length. The strlen() is called on a heap based buffer that might not be zero terminated so libcurl might read beyond the end of it into whatever memory lies after (or just crash) and then deliver that to the application as if it was actually downloaded. | ||||
| CVE-2018-16839 | 4 Canonical, Debian, Haxx and 1 more | 4 Ubuntu Linux, Debian Linux, Curl and 1 more | 2026-04-15 | N/A |
| Curl versions 7.33.0 through 7.61.1 are vulnerable to a buffer overrun in the SASL authentication code that may lead to denial of service. | ||||
| CVE-2018-16842 | 4 Canonical, Debian, Haxx and 1 more | 6 Ubuntu Linux, Debian Linux, Curl and 3 more | 2026-04-15 | N/A |
| Curl versions 7.14.1 through 7.61.1 are vulnerable to a heap-based buffer over-read in the tool_msgs.c:voutf() function that may result in information exposure and denial of service. | ||||
| CVE-2016-8622 | 2 Haxx, Redhat | 3 Libcurl, Jboss Core Services, Rhel Software Collections | 2026-04-15 | N/A |
| The URL percent-encoding decode function in libcurl before 7.51.0 is called `curl_easy_unescape`. Internally, even if this function would be made to allocate a unscape destination buffer larger than 2GB, it would return that new length in a signed 32 bit integer variable, thus the length would get either just truncated or both truncated and turned negative. That could then lead to libcurl writing outside of its heap based buffer. | ||||
| CVE-2018-16890 | 8 Canonical, Debian, F5 and 5 more | 11 Ubuntu Linux, Debian Linux, Big-ip Access Policy Manager and 8 more | 2026-04-15 | 7.5 High |
| libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling incoming NTLM type-2 messages (`lib/vauth/ntlm.c:ntlm_decode_type2_target`) does not validate incoming data correctly and is subject to an integer overflow vulnerability. Using that overflow, a malicious or broken NTLM server could trick libcurl to accept a bad length + offset combination that would lead to a buffer read out-of-bounds. | ||||
| CVE-2019-3822 | 7 Canonical, Debian, Haxx and 4 more | 17 Ubuntu Linux, Debian Linux, Libcurl and 14 more | 2026-04-15 | 9.8 Critical |
| libcurl versions from 7.36.0 to before 7.64.0 are vulnerable to a stack-based buffer overflow. The function creating an outgoing NTLM type-3 header (`lib/vauth/ntlm.c:Curl_auth_create_ntlm_type3_message()`), generates the request HTTP header contents based on previously received data. The check that exists to prevent the local buffer from getting overflowed is implemented wrongly (using unsigned math) and as such it does not prevent the overflow from happening. This output data can grow larger than the local buffer if very large 'nt response' data is extracted from a previous NTLMv2 header provided by the malicious or broken HTTP server. Such a 'large value' needs to be around 1000 bytes or more. The actual payload data copied to the target buffer comes from the NTLMv2 type-2 response header. | ||||
| CVE-2019-3823 | 6 Canonical, Debian, Haxx and 3 more | 9 Ubuntu Linux, Debian Linux, Libcurl and 6 more | 2026-04-15 | N/A |
| libcurl versions from 7.34.0 to before 7.64.0 are vulnerable to a heap out-of-bounds read in the code handling the end-of-response for SMTP. If the buffer passed to `smtp_endofresp()` isn't NUL terminated and contains no character ending the parsed number, and `len` is set to 5, then the `strtol()` call reads beyond the allocated buffer. The read contents will not be returned to the caller. | ||||
| CVE-2025-24928 | 3 Netapp, Redhat, Xmlsoft | 28 Active Iq Unified Manager, H300s, H300s Firmware and 25 more | 2026-02-26 | 7.8 High |
| libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElements in valid.c. To exploit this, DTD validation must occur for an untrusted document or untrusted DTD. NOTE: this is similar to CVE-2017-9047. | ||||
| CVE-2023-27533 | 5 Fedoraproject, Haxx, Netapp and 2 more | 15 Fedora, Curl, Active Iq Unified Manager and 12 more | 2026-02-13 | 9.8 Critical |
| A vulnerability in input validation exists in curl <8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously crafted user name and "telnet options" during server negotiation. The lack of proper input scrubbing allows an attacker to send content or perform option negotiation without the application's intent. This vulnerability could be exploited if an application allows user input, thereby enabling attackers to execute arbitrary code on the system. | ||||
| CVE-2023-23915 | 4 Haxx, Netapp, Redhat and 1 more | 13 Curl, Active Iq Unified Manager, Clustered Data Ontap and 10 more | 2026-02-13 | 6.5 Medium |
| A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality to behave incorrectly when multiple URLs are requested in parallel. Using its HSTS support, curl can be instructed to use HTTPS instead of using an insecure clear-text HTTP step even when HTTP is provided in the URL. This HSTS mechanism would however surprisingly fail when multiple transfers are done in parallel as the HSTS cache file gets overwritten by the most recentlycompleted transfer. A later HTTP-only transfer to the earlier host name would then *not* get upgraded properly to HSTS. | ||||