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The U.S. Department of Energy
Computer Incident Advisory Capability
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INFORMATION BULLETIN
Afuse Vulnerability
[Debian Security Advisory DSA-1611-1]
August 20, 2008 16:00 GMT Number S-370
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PROBLEM: It was discovered that afuse, an automounting file system in
user-space, did not properly escape meta characters in paths.
This allowed a local attacker with read access to the file
system to execute commands as the owner of the file system.
PLATFORM: Debian GNU/Linux 4.0 (etch)
DAMAGE: Privilege escalation.
SOLUTION: Upgrade to the appropriate version.
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VULNERABILITY The risk is LOW. This allows a local attacker with read access
ASSESSMENT: to the file system to execute commands as the owner of the file
system.
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CVSS 2 BASE SCORE: 4.3
TEMPORAL SCORE: 3.6
VECTOR: (AV:L/AC:L/Au:S/C:P/I:P/A:P/E:F/RL:OF/RC:C)
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LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/s-370.shtml
ORIGINAL BULLETIN: http://www.debian.org/security/2008/dsa-1611
CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=
CVE-2008-2232
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[***** Start Debian Security Advisory DSA-1611-1 *****]
Debian Security Advisory
DSA-1611-1 afuse -- privilege escalation
Date Reported:
16 Jul 2008
Affected Packages:
afuse
Vulnerable:
Yes
Security database references:
In the Debian bugtracking system: Bug 490921.
In Mitre's CVE dictionary: CVE-2008-2232.
More information:
Anders Kaseorg discovered that afuse, an automounting file system in user-space, did not properly escape meta characters in paths. This allowed a local attacker with read access to the filesystem to execute commands as the owner of the filesystem.
For the stable distribution (etch), this problem has been fixed in version 0.1.1-1+etch1.
For the unstable distribution (sid), this problem has been fixed in version 0.2-3.
We recommend that you upgrade your afuse (0.1.1-1+etch1) package.
Fixed in:
Debian GNU/Linux 4.0 (etch)
Source:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1.diff.gz
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1.dsc
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1.orig.tar.gz
Alpha:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1_alpha.deb
AMD64:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1_amd64.deb
ARM:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1_arm.deb
HP Precision:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1_hppa.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1_ia64.deb
Big-endian MIPS:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1_mips.deb
Little-endian MIPS:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/a/afuse/afuse_0.1.1-1+etch1_sparc.deb
MD5 checksums of the listed files are available in the original advisory.
[***** End Debian Security Advisory DSA-1611-1 *****]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Debian for the
information contained in this bulletin.
_______________________________________________________________________________
CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
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