USN-3464-1: Wget vulnerabilities

Releases

• Ubuntu 17.10
• Ubuntu 17.04
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• wget - retrieves files from the web

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 versions:

Ubuntu 17.10

• wget - 1.19.1-3ubuntu1.1

Ubuntu 17.04

• wget - 1.18-2ubuntu1.1

Ubuntu 16.04

• wget - 1.17.1-1ubuntu1.3

Ubuntu 14.04

• wget - 1.15-1ubuntu1.14.04.3

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

Related notices

• USN-3464-2