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USN-3457-1: curl vulnerability

23 October 2017

curl could be made to crash or run programs if it received specially crafted network traffic.



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


Brian Carpenter discovered that curl incorrectly handled IMAP FETCH
response lines. A remote attacker could use this issue to cause curl to
crash, resulting in a denial of service, or possibly execute arbitrary

Update instructions

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

Ubuntu 17.10
Ubuntu 17.04
Ubuntu 16.04
Ubuntu 14.04

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


Related notices

  • USN-3441-2: libcurl3-gnutls, libcurl3, libcurl3-nss, curl