Debian Security Advisory

DSA-843-1 arc -- insecure temporary file

Date Reported:
05 Oct 2005
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2005-2945, CVE-2005-2992.
More information:

Two vulnerabilities have been discovered in the ARC archive program under Unix. The Common Vulnerabilities and Exposures project identifies the following problems:

  • CAN-2005-2945

    Eric Romang discovered that the ARC archive program under Unix creates a temporary file with insecure permissions which may lead to an attacker stealing sensitive information.

  • CAN-2005-2992

    Joey Schulze discovered that the temporary file was created in an insecure fashion as well, leaving it open to a classic symlink attack.

The old stable distribution (woody) does not contain arc packages.

For the stable distribution (sarge) these problems have been fixed in version 5.21l-1sarge1.

For the unstable distribution (sid) these problems have been fixed in version 5.21m-1.

We recommend that you upgrade your arc package.

Fixed in:

Debian GNU/Linux 3.1 (sarge)

Intel IA-32:
Intel IA-64:
Motorola 680x0:
Big endian MIPS:
Little endian MIPS:
IBM S/390:
Sun Sparc:

MD5 checksums of the listed files are available in the original advisory.