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Ubuntu Security Notice USN-2348-1

Ubuntu Security Notice USN-2348-1
Posted Sep 16, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2348-1 - It was discovered that APT did not re-verify downloaded files when the If-Modified-Since wasn't met. It was discovered that APT did not invalidate repository data when it switched from an unauthenticated to an authenticated state. It was discovered that the APT Acquire::GzipIndexes option caused APT to skip checksum validation. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS, and was not enabled by default. Various other issues were also addressed.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2014-0487, CVE-2014-0488, CVE-2014-0489, CVE-2014-0490
SHA-256 | b56c1a30e49464f391695a77a2d69d8aa0b452bf2f0f81340dff019482a49026

Ubuntu Security Notice USN-2348-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-2348-1
September 16, 2014

apt vulnerabilities
============================================================================

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

- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in APT.

Software Description:
- apt: Advanced front-end for dpkg

Details:

It was discovered that APT did not re-verify downloaded files when the
If-Modified-Since wasn't met. (CVE-2014-0487)

It was discovered that APT did not invalidate repository data when it
switched from an unauthenticated to an authenticated state. (CVE-2014-0488)

It was discovered that the APT Acquire::GzipIndexes option caused APT to
skip checksum validation. This issue only applied to Ubuntu 12.04 LTS and
Ubuntu 14.04 LTS, and was not enabled by default. (CVE-2014-0489)

It was discovered that APT did not correctly validate signatures when
downloading source packages using the download command. This issue only
applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-0490)

Update instructions:

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

Ubuntu 14.04 LTS:
apt 1.0.1ubuntu2.3

Ubuntu 12.04 LTS:
apt 0.8.16~exp12ubuntu10.19

Ubuntu 10.04 LTS:
apt 0.7.25.3ubuntu9.16

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

References:
http://www.ubuntu.com/usn/usn-2348-1
CVE-2014-0487, CVE-2014-0488, CVE-2014-0489, CVE-2014-0490

Package Information:
https://launchpad.net/ubuntu/+source/apt/1.0.1ubuntu2.3
https://launchpad.net/ubuntu/+source/apt/0.8.16~exp12ubuntu10.19
https://launchpad.net/ubuntu/+source/apt/0.7.25.3ubuntu9.16
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