[11724] in Kerberos-V5-bugs
[krbdev.mit.edu #6796] segfault due to uninitialized variable in S4U
daemon@ATHENA.MIT.EDU (Arlene Berry" via RT)
Tue Oct 5 12:45:51 2010
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From: ""Arlene Berry" via RT" <rt-comment@krbdev.MIT.EDU>
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To: "'AdminCc of krbdev.mit.edu Ticket #6796'":;"'AdminCc of krbdev.mit.edu Ticket #6796'":;@MIT.EDU
Date: Tue, 5 Oct 2010 12:45:48 -0400 (EDT)
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In src/lib/gssapi/krb5/s4u_gss_glue.c,
krb5_gss_acquire_cred_impersonate_name doesn't initialize cred. If
kg_impersonate_name returns an error it doesn't set cred either so when
*output_cred_handle is set to cred it's set to unitialized memory. The
result is that gss_add_cred_impersonate_name in
src/lib/gssapi/mechglue/g_acquire_cred_imp_name.c will then call
mech->gss_release_cred on a bad cred pointer in its errout section.
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