Red Hat Bugzilla – Bug 750929
SIGSEGV Crash while parsing certificates file
Last modified: 2014-07-28 05:01:30 EDT
Description of problem: I have set set folder=imaps://matej@luther.ceplovi.cz/INBOX and when starting mutt, I get this crash: Program received signal SIGSEGV, Segmentation fault. __strstr_sse2 (haystack_start=0x1 <Address 0x1 out of bounds>, needle_start=0x4a8248 "-----BEGIN") at ../string/strstr.c:63 63 while (*haystack && *needle) Missing separate debuginfos, use: debuginfo-install bzip2-libs-1.0.5-7.el6_0.x86_64 keyutils-libs-1.4-3.el6.x86_64 libgcrypt-1.4.5-9.el6.x86_64 libgpg-error-1.7-4.el6.x86_64 libtasn1-2.3-3.el6.x86_64 nss-softokn-freebl-3.12.9-10.el6.x86_64 zlib-1.2.3-27.el6.x86_64 (gdb) thread apply all backtrace Thread 1 (Thread 0x7ffff7fd67c0 (LWP 24792)): #0 __strstr_sse2 (haystack_start=0x1 <Address 0x1 out of bounds>, needle_start=0x4a8248 "-----BEGIN") at ../string/strstr.c:63 #1 0x000000000048798b in tls_compare_certificates (certdata=0xb9b8f0, certstat=0, hostname=<value optimized out>, chainidx=0, certerr=0x7fffffffca18, savedcert=0x7fffffffca14) at mutt_ssl_gnutls.c:438 #2 tls_check_preauth (certdata=0xb9b8f0, certstat=0, hostname=<value optimized out>, chainidx=0, certerr=0x7fffffffca18, savedcert=0x7fffffffca14) at mutt_ssl_gnutls.c:590 #3 0x0000000000489131 in tls_check_certificate (conn=0xb7d950) at mutt_ssl_gnutls.c:1005 #4 tls_negotiate (conn=0xb7d950) at mutt_ssl_gnutls.c:346 #5 0x000000000048950c in tls_socket_open (conn=0xb7d950) at mutt_ssl_gnutls.c:162 #6 0x0000000000490a27 in imap_open_connection (idata=0xb7def0) at imap.c:407 #7 0x0000000000490d68 in imap_conn_find (account=0x7fffffffd860, flags=<value optimized out>) at imap.c:371 #8 0x00000000004924af in imap_open_mailbox (ctx=0xb7c650) at imap.c:574 #9 0x0000000000443be5 in mx_open_mailbox (path=<value optimized out>, flags=0, pctx=0x0) at mx.c:661 #10 0x0000000000439aa6 in main (argc=1, argv=<value optimized out>) at main.c:1017 (gdb) Version-Release number of selected component (if applicable): mutt-1.5.20-2.20091214hg736b6a.el6_1.1.x86_64 How reproducible: 100% (three out of three attempts, also with attempt to access POP3 account) Steps to Reproduce: 1.try to access IMAP or POP3 account 2. 3. Actual results: crash Expected results: opened mailbox Additional info:
This request was evaluated by Red Hat Product Management for inclusion in the current release of Red Hat Enterprise Linux. Because the affected component is not scheduled to be updated in the current release, Red Hat is unfortunately unable to address this request at this time. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux. If you would like it considered as an exception in the current release, please ask your support representative.
Created attachment 766073 [details] proposed patch to parse certificates file securely The previous patch contained off-by-one error, this one seems to work fine for some time in Fedora.
Created attachment 814524 [details] patch to parse certificates file securely Upstream fixed this issue a bit differently, this is upstream's patch.
Fixed in commit http://pkgs.devel.redhat.com/cgit/rpms/mutt/commit/?h=rhel-6.6&id=d5f692c7abf9d2ab32558e21f10c45ba7844def9 (build mutt-1.5.20-5.20091214hg736b6a.el6).
Yes, I use mutt.x86_64 (RHEL package 5:1.5.20-4.20091214hg736b6a.el6_5) and I can confirm it doesn't crash anymore.
List of patches present on mutt-1.5.20-6.20091214hg736b6a.el6: http://pkgs.devel.redhat.com/cgit/rpms/mutt/commit/?h=rhel-6.6&id=d5f692c7abf9d2ab32558e21f10c45ba7844def9
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2014-0945.html