Ubuntu: 3123-1 Moderate: curl Denial of Service Vulnerabilities Alert

ubuntu

November 3, 2016

Several security issues were fixed in curl.

Summary

Several security issues were fixed in curl.

Software Description:

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

Details:

It was discovered that curl incorrectly reused client certificates when

built with NSS. A remote attacker could possibly use this issue to hijack

the authentication of a TLS connection. (CVE-2016-7141)

Nguyen Vu Hoang discovered that curl incorrectly handled escaping certain

strings. A remote attacker could possibly use this issue to cause curl to

crash, resulting in a denial of service, or possibly execute arbitrary

code. (CVE-2016-7167)

It was discovered that curl incorrectly handled storing cookies. A remote

attacker could possibly use this issue to inject cookies for arbitrary

domains in the cookie jar. (CVE-2016-8615)

It was discovered that curl incorrect handled case when comparing user

names and passwords. A remote attacker with knowledge of a case-insensitive

version of the correct password could possibly use this i...

Read the Full Advisory

Topics Covered

security advisory denial of service remote exploit security patch authentication issue ubuntu curl

Update Instructions

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

Ubuntu 16.10:
  libcurl3                        7.50.1-1ubuntu1.1
  libcurl3-gnutls                 7.50.1-1ubuntu1.1
  libcurl3-nss                    7.50.1-1ubuntu1.1

Ubuntu 16.04 LTS:
  libcurl3                        7.47.0-1ubuntu2.2
  libcurl3-gnutls                 7.47.0-1ubuntu2.2
  libcurl3-nss                    7.47.0-1ubuntu2.2

Ubuntu 14.04 LTS:
  libcurl3                        7.35.0-1ubuntu2.10
  libcurl3-gnutls                 7.35.0-1ubuntu2.10
  libcurl3-nss                    7.35.0-1ubuntu2.10

Ubuntu 12.04 LTS:
  libcurl3                        7.22.0-3ubuntu4.17
  libcurl3-gnutls                 7.22.0-3ubuntu4.17
  libcurl3-nss                    7.22.0-3ubuntu4.17

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