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CVE-2012-0954

Status Candidate

Overview

APT 0.7.x before 0.7.25 and 0.8.x before 0.8.16, when using the apt-key net-update to import keyrings, relies on GnuPG argument order and does not check GPG subkeys, which might allow remote attackers to install altered packages via a man-in-the-middle (MITM) attack. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3587.

Related Files

Ubuntu Security Notice USN-1477-1
Posted Jun 16, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1477-1 - Georgi Guninski discovered that APT did not properly validate imported keyrings via apt-key net-update. USN-1475-1 added additional verification for imported keyrings, but it was insufficient. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could potentially be used to install altered packages. This update corrects the issue by disabling the net-update option completely. A future update will re-enable the option with corrected verification.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2012-0954
SHA-256 | 1b4ff29ca5b7fc7085d8b6d331ed19fb7e6e91ec24cca1f134369b5b2de67564
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