USN-3457-1: curl vulnerability

Releases

• Ubuntu 17.10
• Ubuntu 17.04
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

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

Details

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
code.

Update instructions

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

Ubuntu 17.10

• curl - 7.55.1-1ubuntu2.1
• libcurl3 - 7.55.1-1ubuntu2.1
• libcurl3-gnutls - 7.55.1-1ubuntu2.1
• libcurl3-nss - 7.55.1-1ubuntu2.1

Ubuntu 17.04

• curl - 7.52.1-4ubuntu1.3
• libcurl3 - 7.52.1-4ubuntu1.3
• libcurl3-gnutls - 7.52.1-4ubuntu1.3
• libcurl3-nss - 7.52.1-4ubuntu1.3

Ubuntu 16.04

• curl - 7.47.0-1ubuntu2.4
• libcurl3 - 7.47.0-1ubuntu2.4
• libcurl3-gnutls - 7.47.0-1ubuntu2.4
• libcurl3-nss - 7.47.0-1ubuntu2.4

Ubuntu 14.04

• curl - 7.35.0-1ubuntu2.12
• libcurl3 - 7.35.0-1ubuntu2.12
• libcurl3-gnutls - 7.35.0-1ubuntu2.12
• libcurl3-nss - 7.35.0-1ubuntu2.12

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

References

• CVE-2017-1000257

Related notices

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