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USN-3882-1: curl vulnerabilities

6 February 2019

Several security issues were fixed in curl.

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Releases

Packages

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

Details

Wenxiang Qian discovered that curl incorrectly handled certain NTLM
authentication messages. A remote attacker could possibly use this issue to
cause curl to crash, resulting in a denial of service. This issue only
applied to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 18.10.
(CVE-2018-16890)

Wenxiang Qian discovered that curl incorrectly handled certain NTLMv2
authentication messages. 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 applied to Ubuntu 16.04 LTS, Ubuntu 18.04
LTS, and Ubuntu 18.10. (CVE-2019-3822)

Brian Carpenter discovered that curl incorrectly handled certain SMTP
responses. A remote attacker could possibly use this issue to cause curl to
crash, resulting in a denial of service. (CVE-2019-3823)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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