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             AUSCERT External Security Bulletin Redistribution

                     USN-4402-1: curl vulnerabilities
                               25 June 2020


        AusCERT Security Bulletin Summary

Product:           curl
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Access Confidential Data  -- Remote/Unauthenticated
                   Overwrite Arbitrary Files -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-8177 CVE-2020-8169 

Reference:         ESB-2020.2193

Original Bulletin: 

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running curl check for an updated version of the software for their
         operating system.

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USN-4402-1: curl vulnerabilities
24 June 2020

curl vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 20.04 LTS
  o Ubuntu 19.10
  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 LTS
  o Ubuntu 14.04 ESM
  o Ubuntu 12.04 ESM


Several security issues were fixed in curl.

Software Description

  o curl - HTTP, HTTPS, and FTP client and client libraries


Marek Szlagor, Gregory Jefferis and Jeroen Ooms discovered that curl
incorrectly handled certain credentials. An attacker could possibly use this
issue to expose sensitive information. This issue only affected Ubuntu 19.10
and Ubuntu 20.04 LTS. (CVE-2020-8169)

It was discovered that curl incorrectly handled certain parameters. An attacker
could possibly use this issue to overwrite a local file. (CVE-2020-8177)

Update instructions

The problem can be corrected by updating your system to the following package

Ubuntu 20.04 LTS
    curl - 7.68.0-1ubuntu2.1
    libcurl3-gnutls - 7.68.0-1ubuntu2.1
    libcurl3-nss - 7.68.0-1ubuntu2.1
    libcurl4 - 7.68.0-1ubuntu2.1
Ubuntu 19.10
    curl - 7.65.3-1ubuntu3.1
    libcurl3-gnutls - 7.65.3-1ubuntu3.1
    libcurl3-nss - 7.65.3-1ubuntu3.1
    libcurl4 - 7.65.3-1ubuntu3.1
Ubuntu 18.04 LTS
    curl - 7.58.0-2ubuntu3.9
    libcurl3-gnutls - 7.58.0-2ubuntu3.9
    libcurl3-nss - 7.58.0-2ubuntu3.9
    libcurl4 - 7.58.0-2ubuntu3.9
Ubuntu 16.04 LTS
    curl - 7.47.0-1ubuntu2.15
    libcurl3 - 7.47.0-1ubuntu2.15
    libcurl3-gnutls - 7.47.0-1ubuntu2.15
    libcurl3-nss - 7.47.0-1ubuntu2.15
Ubuntu 14.04 ESM
    curl - 7.35.0-1ubuntu2.20+esm4
    libcurl3 - 7.35.0-1ubuntu2.20+esm4
    libcurl3-gnutls - 7.35.0-1ubuntu2.20+esm4
    libcurl3-nss - 7.35.0-1ubuntu2.20+esm4
Ubuntu 12.04 ESM
    curl - 7.22.0-3ubuntu4.28
    libcurl3 - 7.22.0-3ubuntu4.28
    libcurl3-gnutls - 7.22.0-3ubuntu4.28
    libcurl3-nss - 7.22.0-3ubuntu4.28

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

In general, a standard system update will make all the necessary changes.


  o CVE-2020-8169
  o CVE-2020-8177

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