USN-3123-1: curl vulnerabilities

Ubuntu Security Notice USN-3123-1

3rd November, 2016

curl vulnerabilities

A security issue affects these releases of Ubuntu and its
derivatives:

• Ubuntu 16.10



• Ubuntu 16.04 LTS



• Ubuntu 14.04 LTS



• Ubuntu 12.04 LTS

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. ()

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. ()

It was discovered that curl incorrect handled memory when encoding to
base64. A remote attacker could possibly use this issue to cause curl to
crash, resulting in a denial of service, or possibly execute arbitrary
code. ()

It was discovered that curl incorrect handled memory when performing
Kerberos authentication. A remote attacker could possibly use this issue to
cause curl to crash, resulting in a denial of service, or possibly execute
arbitrary code. ()

Luật Nguyễn discovered that curl incorrectly handled converting dates. A
remote attacker could possibly use this issue to cause curl to crash,
resulting in a denial of service. ()

It was discovered that curl incorrectly handled shared cookies. A remote
server could possibly obtain incorrect cookies or other sensitive
information. ()

Update instructions

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

Ubuntu 16.10:

Ubuntu 16.04 LTS:

Ubuntu 14.04 LTS:

Ubuntu 12.04 LTS:

To update your system, please follow these instructions:
,

,

,

,

,

,

CVE-2016-8624