USN-3464-2: Wget vulnerabilities

Ubuntu Security Notice USN-3464-2

30th October, 2017

wget vulnerabilities

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

  • Ubuntu 12.04 LTS

Summary

Several security issues were fixed in Wget.

Software description

  • wget - retrieves files from the web

Details

USN-3464-1 fixed several vulnerabilities in Wget. This update
provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Antti Levomäki, Christian Jalio, and Joonas Pihlaja discovered that Wget
incorrectly handled certain HTTP responses. A remote attacker could use
this issue to cause Wget to crash, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2017-13089, CVE-2017-13090)

Dawid Golunski discovered that Wget incorrectly handled recursive or
mirroring mode. A remote attacker could possibly use this issue to bypass
intended access list restrictions. (CVE-2016-7098)

Orange Tsai discovered that Wget incorrectly handled CRLF sequences in
HTTP headers. A remote attacker could possibly use this issue to inject
arbitrary HTTP headers. (CVE-2017-6508)

Update instructions

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

Ubuntu 12.04 LTS:
wget 1.13.4-2ubuntu1.5

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2016-7098, CVE-2017-13089, CVE-2017-13090, CVE-2017-6508