Debian Security Advisory

DSA-1394-1 reprepro -- authentication bypass

Date Reported:
23 Oct 2007
Affected Packages:
reprepro
Vulnerable:
Yes
Security database references:
In the Debian bugtracking system: Bug 440535.
In Mitre's CVE dictionary: CVE-2007-4739.
More information:

It was discovered that reprepro, a tool to create a repository of Debian packages, only checks the validity of known signatures when updating from a remote site, and thus does not reject packages with only unknown signatures. This allows an attacker to bypass this authentication mechanism.

The oldstable distribution (sarge) is not affected by this problem.

For the stable distribution (etch) this problem has been fixed in version 1.3.1+1-1.

For the unstable distribution (sid) this problem has been fixed in version 2.2.4-1.

We recommend that you upgrade your reprepro package.

Fixed in:

Debian GNU/Linux 4.0 (etch)

Source:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1.dsc
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1.diff.gz
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1.orig.tar.gz
Alpha:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_alpha.deb
AMD64:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_amd64.deb
ARM:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_arm.deb
HPPA:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_hppa.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_ia64.deb
Big endian MIPS:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_mips.deb
Little endian MIPS:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_sparc.deb

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