zziplib: Buffer Overflow

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200704-05 / zziplib
Release Date	April 03, 2007
Latest Revision	April 03, 2007: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-libs/zziplib	< 0.13.49	>= 0.13.49	All supported architectures

Related bugreports: #171441

Synopsis

The zziplib library contains a buffer overflow vulnerability that could lead to user-assisted remote execution of arbitrary code.

2. Impact Information

Background

The zziplib library is a lightweight library for extracting data from files archived in a single zip file.

Description

dmcox dmcox discovered a boundary error in the zzip_open_shared_io() function from zzip/file.c .

Impact

A remote attacker could entice a user to run a zziplib function with an overly long string as an argument which would trigger the buffer overflow and may lead to the execution of arbitrary code.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All zziplib users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/zziplib-0.13.49"

4. References

CVE-2007-1614

Page updated April 03, 2007

Summary: This is a Gentoo Linux Security Advisory

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