Several local/remote vulnerabilities have been discovered in libarchive1, a single library to read/write tar, cpio, pax, zip, iso9660 archives. The Common Vulnerabilities and Exposures project identifies the following problems:
It was discovered that libarchive1 would miscompute the length of a buffer resulting in a buffer overflow if yet another type of corruption occurred in a pax extension header.
It was discovered that if an archive prematurely ended within a pax extension header the libarchive1 library could enter an infinite loop.
If an archive prematurely ended within a tar header, immediately following a pax extension header, libarchive1 could dereference a NULL pointer.
The old stable distribution (sarge), does not contain this package.
For the stable distribution (etch), these problems have been fixed in version 1.2.53-2etch1.
For the unstable distribution (sid), these problems have been fixed in version 2.2.4-1.
We recommend that you upgrade your libarchive package.
MD5 checksums of the listed files are available in the original advisory.