Step 0) invoke python (on linux)
Step 1) input print(hex(id(“__main__”) & ~4095))
Step 2) Take output of (1) and subtract that number from the base of libc’s
base address (or another library); this is your offset and seems to only
vary by compiled image (for me, with 3.3.5 its 0xb4f000.
Step 3) print(hex((id(“__main__”) & ~4095) – 0xb4f000))
Step 4) The output of (3) should be a stable offset from a given…
While fuzzing GnuTLS I discovered a malformed certificate input sample
that would cause a heap overflow read of 99 bytes in the DER decoding
functions of Libtasn1. The heap overflow happens in the function
_asn1_extract_der_octet().
This issue was reported to the Libtasn1 developer on 16th April. A fix
was committed on 20th April and is part of the…
It appears to me that CVE-2008-568 is rather hard to find information
about, outside the public exploit [1] and advisory [2] issued by the
team that found it. It’s unknown to CVE sites probably because it’s only
referenced by 3 digits instead of 4. The patch README [3] doesn’t seem
to reference this issue at all. Does anyone know if it has a different
CVE number or what happened here?