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curl vulnerabilities · Page 3

Vulnerabilities published for curl in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 85

  1. ALPINE-CVE-2019-3823

    High · CVSS 7.5Fix available

    ALPINE-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. 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.

    • Update to 7.64.0-r0
    Published Updated
  2. ALPINE-CVE-2019-3822

    Critical · CVSS 9.8Fix available

    ALPINE-CVE-2019-3822

    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

    • Update to 7.64.0-r0
    Published Updated
  3. ALPINE-CVE-2018-16890

    High · CVSS 7.5Fix available

    ALPINE-CVE-2018-16890

    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.

    • Update to 7.64.0-r0
    Published Updated
  4. ALPINE-CVE-2018-16840

    Critical · CVSS 9.8Fix available

    ALPINE-CVE-2018-16840

    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.

    • Update to 7.62.0-r0
    Published Updated
  5. ALPINE-CVE-2018-14618

    Critical · CVSS 9.8Fix available

    ALPINE-CVE-2018-14618

    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

    • Update to 7.61.1-r0
    Published Updated
  6. ALPINE-CVE-2016-8616

    Medium · CVSS 5.9Fix available

    ALPINE-CVE-2016-8616

    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.

    • Update to 7.51.0-r0
    Published Updated
  7. ALPINE-CVE-2016-8615

    High · CVSS 7.5Fix available

    ALPINE-CVE-2016-8615

    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.

    • Update to 7.51.0-r0
    Published Updated
  8. ALPINE-CVE-2016-8624

    High · CVSS 7.5Fix available

    ALPINE-CVE-2016-8624

    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.

    • Update to 7.51.0-r0
    Published Updated
  9. ALPINE-CVE-2016-8622

    Critical · CVSS 9.8Fix available

    ALPINE-CVE-2016-8622

    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.

    • Update to 7.51.0-r0
    Published Updated

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