Search vulnerabilities

Use the Query Builder to create your own search query, or check out the documentation to learn the search syntax.

Results 63

Export CSV
CVE-2023-27537

curl: HSTS double-free

A double free vulnerability exists in libcurl <8.0.0 when sharing HSTS data between separate "handles". This sharing was introduced without considerations for do this sharing across separate threads but there was no indication of this fact in the documentation. Due to missing mutexes or thread locks, two threads sharing the same HSTS data could end up doing a double-free or use-after-free.

CVSS 3.1 · 5.9 Medium EPSS 1.9% KEV · Not listed
Vendors
Broadcom Haxx Netapp and 1 more
Products
Brocade Fabric Operating System Firmware Libcurl Active Iq Unified Manager and 10 more
CVE-2022-32156

Splunk Enterprise and Universal Forwarder CLI connections lacked TLS cert validation

In Splunk Enterprise and Universal Forwarder versions before 9.0, the Splunk command-line interface (CLI) did not validate TLS certificates while connecting to a remote Splunk platform instance by default. After updating to version 9.0, see Configure TLS host name validation for the Splunk CLI https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_TLS_host_name_validation_for_the_Splunk_CLI to enable the remediation. The vulnerability does not affect the Splunk Cloud Platform. At the time of publishing, we have no evidence of exploitation of this vulnerability by external parties. The issue requires conditions beyond the control of a potential bad actor such as a machine-in-the-middle attack. Hence, Splunk rates the complexity of the attack as High.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Splunk
Products
Splunk Universal Forwarder
CVE-2022-27779

curl: cookie for trailing dot TLD

libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's "cookie engine" can bebuilt with or without [Public Suffix List](https://publicsuffix.org/)awareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.

CVSS 3.1 · 5.3 Medium EPSS 2.8% KEV · Not listed
Vendors
Haxx Netapp Splunk
Products
Curl Clustered Data Ontap H300s and 12 more
CVE-2021-31566

libarchive: symbolic links incorrectly followed when changing modes, times, ACL and flags of a file while extracting an archive

An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Libarchive and 2 more
Products
Debian Linux Fedora Libarchive and 11 more
CVE-2020-8169

libcurl: partial password leak over DNS on HTTP redirect

curl 7.62.0 through 7.70.0 is vulnerable to an information disclosure vulnerability that can lead to a partial password being leaked over the network and to the DNS server(s).

CVSS 3.1 · 7.5 High EPSS 3.9% KEV · Not listed
Vendors
Debian Haxx Redhat and 2 more
Products
Debian Linux Curl Jboss Core Services and 4 more
CVE-2019-20454

pcre: Out of bounds read in JIT mode when \X is used in non-UTF mode

An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c.

CVSS 3.1 · 7.5 High EPSS 1.6% KEV · Not listed
Vendors
Fedoraproject Pcre Redhat and 1 more
Products
Fedora Pcre2 Enterprise Linux and 1 more
CVE-2023-27538

curl: SSH connection too eager reuse still

An authentication bypass vulnerability exists in libcurl prior to v8.0.0 where it reuses a previously established SSH connection despite the fact that an SSH option was modified, which should have prevented reuse. libcurl maintains a pool of previously used connections to reuse them for subsequent transfers if the configurations match. However, two SSH settings were omitted from the configuration check, allowing them to match easily, potentially leading to the reuse of an inappropriate connection.

CVSS 3.1 · 7.7 High EPSS 1.5% KEV · Not listed
Vendors
Broadcom Debian Fedoraproject and 4 more
Products
Brocade Fabric Operating System Firmware Debian Linux Fedora and 13 more
CVE-2023-27536

curl: GSS delegation too eager connection re-use

An authentication bypass vulnerability exists libcurl <8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPT_GSSAPI_DELEGATION option. This vulnerability affects krb5/kerberos/negotiate/GSSAPI transfers and could potentially result in unauthorized access to sensitive information. The safest option is to not reuse connections if the CURLOPT_GSSAPI_DELEGATION option has been changed.

CVSS 3.1 · 5.9 Medium EPSS 1.8% KEV · Not listed
Vendors
Debian Fedoraproject Haxx and 3 more
Products
Debian Linux Fedora Libcurl and 13 more
CVE-2023-27535

curl: FTP too eager connection reuse

An authentication bypass vulnerability exists in libcurl <8.0.0 in the FTP connection reuse feature that can result in wrong credentials being used during subsequent transfers. Previously created connections are kept in a connection pool for reuse if they match the current setup. However, certain FTP settings such as CURLOPT_FTP_ACCOUNT, CURLOPT_FTP_ALTERNATIVE_TO_USER, CURLOPT_FTP_SSL_CCC, and CURLOPT_USE_SSL were not included in the configuration match checks, causing them to match too easily. This could lead to libcurl using the wrong credentials when performing a transfer, potentially allowing unauthorized access to sensitive information.

CVSS 3.1 · 5.9 Medium EPSS 1.8% KEV · Not listed
Vendors
Debian Fedoraproject Haxx and 3 more
Products
Debian Linux Fedora Libcurl and 13 more
CVE-2023-27534

curl: SFTP path ~ resolving discrepancy

A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /~2/foo while accessing a server with a specific user.

CVSS 3.1 · 8.8 High EPSS 2.4% KEV · Not listed
Vendors
Broadcom Fedoraproject Haxx and 3 more
Products
Brocade Fabric Operating System Firmware Fedora Curl and 12 more
CVE-2023-27533

curl: TELNET option IAC injection

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.

CVSS 3.1 · 9.8 Critical EPSS 2.2% KEV · Not listed
Vendors
Fedoraproject Haxx Netapp and 2 more
Products
Fedora Curl Active Iq Unified Manager and 12 more
CVE-2023-23916

curl: HTTP multi-header compression denial of service

An allocation of resources without limits or throttling vulnerability exists in curl <v7.88.0 based on the "chained" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable "links" in this "decompression chain" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a "malloc bomb", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.

CVSS 3.1 · 6.5 Medium EPSS 1.7% KEV · Not listed
Vendors
Debian Fedoraproject Haxx and 3 more
Products
Debian Linux Fedora Curl and 16 more
CVE-2023-23915

curl: HSTS amnesia with --parallel

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.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Haxx Netapp Redhat and 1 more
Products
Curl Active Iq Unified Manager Clustered Data Ontap and 10 more
CVE-2023-23914

curl: HSTS ignored on multiple requests

A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality fail when multiple URLs are requested serially. Using its HSTS support, curl can be instructed to use HTTPS instead of usingan insecure clear-text HTTP step even when HTTP is provided in the URL. ThisHSTS mechanism would however surprisingly be ignored by subsequent transferswhen done on the same command line because the state would not be properlycarried on.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Vendors
Haxx Netapp Redhat and 1 more
Products
Curl Active Iq Unified Manager Clustered Data Ontap and 10 more
CVE-2022-43552

curl: Use-after-free triggered by an HTTP proxy deny response

A use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it supports through an HTTP proxy. HTTP proxies can (and often do) deny such tunnel operations. When getting denied to tunnel the specific protocols SMB or TELNET, curl would use a heap-allocated struct after it had been freed, in its transfer shutdown code path.

CVSS 3.1 · 5.9 Medium EPSS 2.7% KEV · Not listed
Vendors
Apple Haxx Redhat and 1 more
Products
Macos Curl Enterprise Linux and 3 more
CVE-2022-43551

curl: HSTS bypass via IDN

A vulnerability exists in curl <7.87.0 HSTS check that could be bypassed to trick it to keep using HTTP. 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. However, the HSTS mechanism could be bypassed if the host name in the given URL first uses IDN characters that get replaced to ASCII counterparts as part of the IDN conversion. Like using the character UTF-8 U+3002 (IDEOGRAPHIC FULL STOP) instead of the common ASCII full stop (U+002E) `.`. Then in a subsequent request, it does not detect the HSTS state and makes a clear text transfer. Because it would store the info IDN encoded but look for it IDN decoded.

CVSS 3.1 · 7.5 High EPSS 16.6% KEV · Not listed
Vendors
Fedoraproject Haxx Netapp and 2 more
Products
Fedora Curl Active Iq Unified Manager and 5 more
CVE-2022-42916

curl: HSTS bypass via IDN

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.

CVSS 3.1 · 7.5 High EPSS 2.5% KEV · Not listed
Vendors
Apple Fedoraproject Haxx and 2 more
Products
Macos Fedora Curl and 2 more
CVE-2022-42915

curl: HTTP proxy double-free

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.

CVSS 3.1 · 8.1 High EPSS 3.7% KEV · Not listed
Vendors
Apple Fedoraproject Haxx and 3 more
Products
Macos Fedora Curl and 11 more