Haxx: Security Vulnerabilities
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.
CVSS Score
4.4
EPSS Score
0.002
Published
2018-10-31
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.
CVSS Score
4.3
EPSS Score
0.004
Published
2018-10-31
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.
CVSS Score
4.3
EPSS Score
0.003
Published
2018-10-31
curl before version 7.61.1 is vulnerable to a buffer overrun in the NTLM authentication code. The internal function Curl_ntlm_core_mk_nt_hash multiplies the length of the password by two (SUM) to figure out how large temporary storage area to allocate from the heap. The length value is then subsequently used to iterate over the password and generate output into the allocated storage buffer. On systems with a 32 bit size_t, the math to calculate SUM triggers an integer overflow when the password length exceeds 2GB (2^31 bytes). This integer overflow usually causes a very small buffer to actually get allocated instead of the intended very huge one, making the use of that buffer end up in a heap buffer overflow. (This bug is almost identical to CVE-2017-8816.)
CVSS Score
7.5
EPSS Score
0.005
Published
2018-09-05
curl 7.x before 7.10.7 sends CONNECT proxy credentials to the remote server.
CVSS Score
7.5
EPSS Score
0.004
Published
2018-08-23
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.
CVSS Score
5.3
EPSS Score
0.043
Published
2018-08-01
A flaw was found in curl before version 7.51.0 When re-using a connection, curl was doing case insensitive comparisons of user name and password with the existing connections. This means that if an unused connection with proper credentials exists for a protocol that has connection-scoped credentials, an attacker can cause that connection to be reused if s/he knows the case-insensitive version of the correct password.
CVSS Score
3.7
EPSS Score
0.042
Published
2018-08-01
The function `read_data()` in security.c in curl before version 7.51.0 is vulnerable to memory double free.
CVSS Score
5.3
EPSS Score
0.031
Published
2018-08-01
The 'globbing' feature in curl before version 7.51.0 has a flaw that leads to integer overflow and out-of-bounds read via user controlled input.
CVSS Score
6.5
EPSS Score
0.008
Published
2018-08-01
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.
CVSS Score
3.3
EPSS Score
0.012
Published
2018-08-01