[Pkg-shadow-devel] Bug#675824: shadow: possible segfault in useradd

Igor Pashev pashev.igor at gmail.com
Sun Jun 3 14:54:16 UTC 2012


Package: shadow
Version: passwd
Severity: normal

Dear Maintainer,

Function __pw_dup() in lib/pwmem.c allocates uninitialized memory for struct
passwd and then fills some members of that struct, but other members (e. g.
pw_age) are still uninitialized. It can results in segfault in putpwent() which
tests for pw_age.



-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.0.0-1-amd64 (SMP w/4 CPU cores)
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