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FreeBSD Security Advisory (FreeBSD-SA-07:05.libarchive.asc)

Information

Severity

Severity

Critical

Family

Family

FreeBSD Local Security Checks

CVSSv2 Base

CVSSv2 Base

9.3

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

15 years ago

Modified

Modified

6 years ago

Summary

The remote host is missing an update to the system as announced in the referenced advisory FreeBSD-SA-07:05.libarchive.asc

Insight

Insight

The libarchive library provides a flexible interface for reading and writing streaming archive files such as tar and cpio, and has been the basis for FreeBSD's implementation of the tar(1) utility since FreeBSD 5.3. Several problems have been found in the code used to parse the tar and pax interchange formats. These include entering an infinite loop if an archive prematurely ends within a pax extension header or if certain types of corruption occur in pax extension headers [CVE-2007-3644] dereferencing a NULL pointer if an archive prematurely ends within a tar header immediately following a pax extension header or if certain other types of corruption occur in pax extension headers [CVE-2007-3645] and miscomputing the length of a buffer resulting in a buffer overflow if yet another type of corruption occurs in a pax extension header [CVE-2007-3641].

Solution

Solution

Upgrade your system to the appropriate stable release or security branch dated after the correction date https://secure1.securityspace.com/smysecure/catid.html?in=FreeBSD-SA-07:05.libarchive.asc

Common Vulnerabilities and Exposures (CVE)