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Sicherheitslücken in curl · Seite 8

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für curl: 24. Davon im KEV-Katalog: 0.

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Sicherheitslücken: 222

  1. CVE-2020-8284

    Niedrig · CVSS 3.7EPSS 3,9%Korrektur verfügbar

    CVE-2020-8284

    A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions.

    • Auf 7.74.0-1 aktualisieren
    Veröffentlicht Aktualisiert
  2. CVE-2019-3823

    Mittel · CVSS 4.3EPSS 4,12%Korrektur verfügbar

    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.

    • Auf 7.64.0-1 aktualisieren
    Veröffentlicht Aktualisiert
  3. CVE-2019-3822

    Hoch · CVSS 7.1EPSS 12,87%Korrektur verfügbar

    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

    • Auf 7.64.0-1 aktualisieren
    Veröffentlicht Aktualisiert
  4. CVE-2018-16890

    Mittel · CVSS 5.4EPSS 5,35%Korrektur verfügbar

    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.

    • Auf 7.64.0-1 aktualisieren
    Veröffentlicht Aktualisiert
  5. CVE-2018-16840

    Mittel · CVSS 4.3EPSS 3,4%Korrektur verfügbar

    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.

    • Auf 7.62.0-1 aktualisieren
    Veröffentlicht Aktualisiert
  6. CVE-2018-14618

    Hoch · CVSS 7.5EPSS 11,12%Korrektur verfügbar

    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

    • Auf 7.62.0-1 aktualisieren
    Veröffentlicht Aktualisiert
  7. CVE-2016-8616

    Niedrig · CVSS 3.7EPSS 3,47%Korrektur verfügbar

    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.

    • Auf 7.51.0-1 aktualisieren
    Veröffentlicht Aktualisiert

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