Vulnerabilities > Haxx > Libcurl

DATE CVE VULNERABILITY TITLE RISK
2021-09-23 CVE-2021-22945 Double Free vulnerability in multiple products
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*.
network
low complexity
haxx fedoraproject netapp oracle apple siemens debian splunk CWE-415
critical
9.1
2021-08-05 CVE-2021-22924 Use of Incorrectly-Resolved Name or Reference vulnerability in multiple products
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' which a transfer can setto qualify how to verify the server certificate.
3.7
2021-04-01 CVE-2021-22890 Authentication Bypass by Spoofing vulnerability in multiple products
curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets.
3.7
2021-04-01 CVE-2021-22876 Information Exposure vulnerability in multiple products
curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header.
5.3
2020-12-14 CVE-2020-8286 Improper Certificate Validation vulnerability in multiple products
curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.
7.5
2020-12-14 CVE-2020-8285 Uncontrolled Recursion vulnerability in multiple products
curl 7.21.0 to and including 7.73.0 is vulnerable to uncontrolled recursion due to a stack overflow issue in FTP wildcard match parsing.
7.5
2020-12-14 CVE-2020-8231 Use After Free vulnerability in multiple products
Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.
network
low complexity
haxx siemens debian oracle splunk CWE-416
7.5
2019-05-28 CVE-2019-5436 Out-of-bounds Write vulnerability in multiple products
A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.
7.8
2019-02-06 CVE-2019-3823 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.
network
low complexity
haxx canonical debian netapp oracle
7.5
2019-02-06 CVE-2019-3822 Out-of-bounds Write vulnerability in multiple products
libcurl versions from 7.36.0 to before 7.64.0 are vulnerable to a stack-based buffer overflow.
network
low complexity
haxx canonical debian netapp siemens oracle redhat CWE-787
critical
9.8