DSA-1904-1 wget -- insufficient input validation

Debian Security Advisory

DSA-1904-1 wget -- insufficient input validation

Date Reported:

09 Oct 2009

Affected Packages:

wget

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 549293.
In Mitre's CVE dictionary: CVE-2009-3490.

More information:

Daniel Stenberg discovered that wget, a network utility to retrieve files from the Web using HTTP(S) and FTP, is vulnerable to the "Null Prefix Attacks Against SSL/TLS Certificates" published at the Blackhat conference some time ago. This allows an attacker to perform undetected man-in-the-middle attacks via a crafted ITU-T X.509 certificate with an injected null byte in the Common Name field.

For the oldstable distribution (etch), this problem has been fixed in version 1.10.2-2+etch4.

For the stable distribution (lenny), this problem has been fixed in version 1.11.4-2+lenny1.

For the testing distribution (squeeze), this problem will be fixed soon.

For the unstable distribution (sid), this problem has been fixed in version 1.12-1.

We recommend that you upgrade your wget packages.

Fixed in:

Debian GNU/Linux 4.0 (etch)

Source:

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4.diff.gz

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2.orig.tar.gz

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4.dsc

Alpha:

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4_alpha.deb

AMD64:

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4_amd64.deb

ARM:

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4_arm.deb

HP Precision:

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4_hppa.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4_ia64.deb

Little-endian MIPS:

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch4_sparc.deb

Debian GNU/Linux 5.0 (lenny)

Source:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1.dsc

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4.orig.tar.gz

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1.diff.gz

Alpha:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_alpha.deb

AMD64:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_amd64.deb

ARM:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_arm.deb

ARM EABI:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_armel.deb

HP Precision:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_hppa.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_ia64.deb

Big-endian MIPS:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_mips.deb

Little-endian MIPS:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_sparc.deb

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