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TITLE:
GNU Tar "rmt" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA38836

VERIFY ADVISORY:
https://secunia.com/advisories/38836/

DESCRIPTION:
A vulnerability has been reported in GNU tar, which can potentially
be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to a boundary error within the client
implementation for the "rmt" (remote magtape) protocol, which can be
exploited to cause a buffer overflow.

Successful exploitation may allow execution of arbitrary code, but
requires that a user is tricked into connecting to a malicious "rmt"
server, e.g. by opening a tar file including a colon in the file
name.

SOLUTION:
Update to version 1.23.

PROVIDED AND/OR DISCOVERED BY:
Jakob Lell, TU Berlin computer security working group (AGRS)

ORIGINAL ADVISORY:
GNU:
https://www.gnu.org/software/tar/#TOCreleases

Jakob Lell:
https://www.agrs.tu-berlin.de/index.php?id=78327

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