USN-3648-1: curl vulnerabilities

Releases

• Ubuntu 18.04 ESM
• Ubuntu 17.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

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

Details

Dario Weisser discovered that curl incorrectly handled long FTP server
command replies. If a user or automated system were tricked into connecting
to a malicious FTP server, a remote attacker could use this issue to cause
curl to crash, resulting in a denial of service, or possibly execute
arbitrary code. This issue only affected Ubuntu 17.10 and Ubuntu 18.04 LTS.
(CVE-2018-1000300)

Max Dymond discovered that curl incorrectly handled certain RTSP responses.
If a user or automated system were tricked into connecting to a malicious
server, a remote attacker could use this issue to cause curl to crash,
resulting in a denial of service, or possibly obtain sensitive information.
(CVE-2018-1000301)

Update instructions

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

Ubuntu 18.04

• curl - 7.58.0-2ubuntu3.1
• libcurl3-gnutls - 7.58.0-2ubuntu3.1
• libcurl3-nss - 7.58.0-2ubuntu3.1
• libcurl4 - 7.58.0-2ubuntu3.1

Ubuntu 17.10

• curl - 7.55.1-1ubuntu2.5
• libcurl3 - 7.55.1-1ubuntu2.5
• libcurl3-gnutls - 7.55.1-1ubuntu2.5
• libcurl3-nss - 7.55.1-1ubuntu2.5

Ubuntu 16.04

• curl - 7.47.0-1ubuntu2.8
• libcurl3 - 7.47.0-1ubuntu2.8
• libcurl3-gnutls - 7.47.0-1ubuntu2.8
• libcurl3-nss - 7.47.0-1ubuntu2.8

Ubuntu 14.04

• curl - 7.35.0-1ubuntu2.16
• libcurl3 - 7.35.0-1ubuntu2.16
• libcurl3-gnutls - 7.35.0-1ubuntu2.16
• libcurl3-nss - 7.35.0-1ubuntu2.16

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

References

• CVE-2018-1000300
• CVE-2018-1000301

Related notices

• USN-3598-2: libcurl3, libcurl3-gnutls, curl, libcurl3-nss