1. Ubuntu Security Notices
  2. USN-3882-1

USN-3882-1: curl vulnerabilities

Publication date

6 February 2019

Overview

Several security issues were fixed in curl.

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)

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)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.10 cosmic curl –  7.61.0-1ubuntu2.3
libcurl3-gnutls –  7.61.0-1ubuntu2.3
libcurl3-nss –  7.61.0-1ubuntu2.3
libcurl4 –  7.61.0-1ubuntu2.3
18.04 bionic curl –  7.58.0-2ubuntu3.6
libcurl3-gnutls –  7.58.0-2ubuntu3.6
libcurl3-nss –  7.58.0-2ubuntu3.6
libcurl4 –  7.58.0-2ubuntu3.6
16.04 xenial curl –  7.47.0-1ubuntu2.12
libcurl3 –  7.47.0-1ubuntu2.12
libcurl3-gnutls –  7.47.0-1ubuntu2.12
libcurl3-nss –  7.47.0-1ubuntu2.12
14.04 trusty curl –  7.35.0-1ubuntu2.20
libcurl3 –  7.35.0-1ubuntu2.20
libcurl3-gnutls –  7.35.0-1ubuntu2.20
libcurl3-nss –  7.35.0-1ubuntu2.20

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References

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