After CVE-2013-4852 (bug #479880), a series of vulnerabilities was found and fixed in filezilla 3.7.3 (available in tree)
CVE-2013-4208 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4208): The rsa_verify function in PuTTY before 0.63 (1) does not clear sensitive process memory after use and (2) does not free certain structures containing sensitive process memory, which might allow local users to discover private RSA and DSA keys. CVE-2013-4207 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4207): Buffer overflow in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) via an invalid DSA signature that is not properly handled during computation of a modular inverse and triggers the overflow during a division by zero by the bignum functionality, a different vulnerability than CVE-2013-4206. CVE-2013-4206 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4206): Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.
Thank you for the report. Arches, please test and mark stable: =net-ftp/filezilla-3.7.3 Target arches: amd64 ppc sparc x86
amd64/x86 stable
ppc stable
sparc stable
Added to GLSA draft. @maintainers: cleanup please.
All vulnerable versions removed from tree
This issue was resolved and addressed in GLSA 201309-08 at http://security.gentoo.org/glsa/glsa-201309-08.xml by GLSA coordinator Chris Reffett (creffett).