Linux Security
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    Mageia 2020-0482: curl security update

    Date 31 Dec 2020
    711
    Posted By LinuxSecurity Advisories
    Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data. (CVE-2020-8231). 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
    MGASA-2020-0482 - Updated curl packages fix security vulnerabilities
    
    Publication date: 31 Dec 2020
    URL: https://advisories.mageia.org/MGASA-2020-0482.html
    Type: security
    Affected Mageia releases: 7
    CVE: CVE-2020-8231,
         CVE-2020-8284,
         CVE-2020-8285,
         CVE-2020-8286
    
    Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the
    wrong connection when sending data. (CVE-2020-8231).
    
    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. (CVE-2020-8284).
    
    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. (CVE-2020-8285).
    
    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.
    (CVE-2020-8286).
    
    References:
    - https://bugs.mageia.org/show_bug.cgi?id=27154
    - https://curl.haxx.se/docs/CVE-2020-8231.html
    - https://ubuntu.com/security/notices/USN-4466-1
    - https://lists.fedoraproject.org/archives/list/This email address is being protected from spambots. You need JavaScript enabled to view it./thread/Q7JHSXTQ7EUHJPYL333CB3OBCKHA5FQC/
    - https://curl.se/docs/CVE-2020-8284.html
    - https://curl.se/docs/CVE-2020-8285.html
    - https://curl.se/docs/CVE-2020-8286.html
    - https://ubuntu.com/security/notices/USN-4665-1
    - https://lists.fedoraproject.org/archives/list/This email address is being protected from spambots. You need JavaScript enabled to view it./thread/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG/
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8231
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8284
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8285
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8286
    
    SRPMS:
    - 7/core/curl-7.71.0-1.1.mga7
    

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