Debian Security Advisory
DSA-1876-1 dnsmasq -- buffer overflow
- Date Reported:
- 01 Sep 2009
- Affected Packages:
- dnsmasq
- Vulnerable:
- Yes
- Security database references:
- In Mitre's CVE dictionary: CVE-2009-2957, CVE-2009-2958.
- More information:
-
Several remote vulnerabilities have been discovered in the TFTP component of dnsmasq. The Common Vulnerabilities and Exposures project identifies the following problems:
- CVE-2009-2957
A buffer overflow in TFTP processing may enable arbitrary code execution to attackers which are permitted to use the TFTP service.
- CVE-2009-2958
Malicious TFTP clients may crash dnsmasq, leading to denial of service.
The old stable distribution is not affected by these problems.
For the stable distribution (lenny), these problems have been fixed in version 2.45-1+lenny1.
For the unstable distribution (sid), these problems have been fixed in version 2.50-1.
We recommend that you upgrade your dnsmasq packages.
- CVE-2009-2957
- Fixed in:
-
Debian GNU/Linux 5.0 (lenny)
- Source:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq_2.45.orig.tar.gz
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq_2.45-1+lenny1.diff.gz
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq_2.45-1+lenny1.dsc
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq_2.45-1+lenny1.diff.gz
- Architecture-independent component:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq_2.45-1+lenny1_all.deb
- Alpha:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_alpha.deb
- AMD64:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_amd64.deb
- ARM:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_arm.deb
- ARM EABI:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_armel.deb
- HP Precision:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_hppa.deb
- Intel IA-32:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_i386.deb
- Intel IA-64:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_ia64.deb
- Big-endian MIPS:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_mips.deb
- Little-endian MIPS:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_mipsel.deb
- PowerPC:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_powerpc.deb
- IBM S/390:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_s390.deb
- Sun Sparc:
- http://security.debian.org/pool/updates/main/d/dnsmasq/dnsmasq-base_2.45-1+lenny1_sparc.deb
MD5 checksums of the listed files are available in the original advisory.