Wireshark-commits: [Wireshark-commits] master-2.6 e7c9dd0: ssl: fix duplicate dissections with mult

From: Wireshark code review <code-review-do-not-reply@xxxxxxxxxxxxx>
Date: Mon, 16 Apr 2018 15:37:10 +0000
URL: https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=e7c9dd0687823bd1cc275f969536760fd8064c53
Submitter: Peter Wu (peter@xxxxxxxxxxxxx)
Changed: branch: master-2.6
Repository: wireshark

Commits:

e7c9dd0 by Peter Wu (peter@xxxxxxxxxxxxx):

    ssl: fix duplicate dissections with multiple PDUs in a stream
    
    The previous fix was incomplete and would still result in duplicate PDU
    dissections starting from the second reassembled PDU in a TLS stream.
    The reason for that is that "nxtseq" is the absolute offset within a TLS
    application data stream where the current segment ends while the
    reassembled PDU length ("ipfd_head->datalen") is likely smaller than
    "nxtseq".
    
    Note: this fix assumes that the there won't be another (partial) PDU
    following a reassembled PDU in a single packet (that is, the condition
    "nxtseq > msp->nxtpdu" is assumed not to occur). If that is not the
    case, a different issue occurs which needs another fix (more work):
    "Reassembly error, protocol SSL: Frame already added in first pass".
    
    Change-Id: Ib546f6e85baa0670c2c6a31ee8de87422004ecf3
    Bug: 14596
    Fixes: v2.1.0rc0-1521-gcefd1d4910 ("ssl: avoid duplicate PDU dissections")
    Reviewed-on: https://code.wireshark.org/review/26935
    Petri-Dish: Peter Wu <peter@xxxxxxxxxxxxx>
    Tested-by: Petri Dish Buildbot
    Reviewed-by: Anders Broman <a.broman58@xxxxxxxxx>
    (cherry picked from commit f9ed58759fca787b6d3b4c2a988d714014b5ddc6)
    Reviewed-on: https://code.wireshark.org/review/26971
    Reviewed-by: Peter Wu <peter@xxxxxxxxxxxxx>
    

Actions performed:

    from  5a274e5   Qt: Do not show MaxMind DB path when not enabled
    adds  e7c9dd0   ssl: fix duplicate dissections with multiple PDUs in a stream


Summary of changes:
 epan/dissectors/packet-ssl.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)