Articles with tag: Research
POSTED BY: Dimitrios Glynos / 21.01.2009

Static SSP canary in Debian libc6

CENSUS ID:CENSUS-2009-0001
Affected Products:All SSP-armoured applications, statically or dynamically linked against the libc6 library (versions ≤ 2.7) provided by the Debian GNU/Linux project.
Class:Degraded performance of security mechanism due to misconfiguration.
Discovered by:Dimitris Glynos

We have found that Debian packages of the GNU libc library (versions prior to and including 2.7) provide a static (i.e. guessable) canary value to all applications armoured with the gcc SSP mechanism.


POSTED BY: Patroklos Argyroudis / 19.01.2009

FreeBSD kernel debugging

The FreeBSD kernel can be debugged with the ddb(4) interactive kernel debugger. Although the latest production release of FreeBSD (7.1 at the time of this writing) adds some very useful features, ddb is still lacking the flexibility of gdb.