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report for 2008.

Highlights from the 2008 report:
 * Vulnerability Research
 * Software Inspection Results
 * Secunia Research Highlights
 * Secunia Advisory Statistics

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Stay Secure,

Secunia


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TITLE:
apt Package Signature Verification Security Bypass

SECUNIA ADVISORY ID:
SA34829

VERIFY ADVISORY:
http://secunia.com/advisories/34829/

DESCRIPTION:
A security issue has been reported in apt, which can be exploited by
malicious people to bypass certain security restrictions.

The security issue is caused due to apt checking for the "GOODSIG"
instead of the "VALIDSIG" return value when launching "gpgv" to
verify packages, which results in apt accepting packages signed with
expired or revoked keys.

Note: Additionally, an error exists within the daily apt cron script
when handling certain dates. This can lead to automatic updates being
stopped or disabled.

SOLUTION:
Update to version 0.7.21.

PROVIDED AND/OR DISCOVERED BY:
Reported in a Debian bug by martin f krafft.

ORIGINAL ADVISORY:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=433091

http://packages.debian.org/changelogs/pool/main/a/apt/apt_0.7.21/changelog#versionversion0.7.21

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