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Advisories

L-SMASH through 2.14.5 Heap Out-of-Bounds Write via hdlr and url Boxes

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Severity
medium
Date
Affecting

  • L-SMASH <= 2.14.5

CWE
  • CWE-787 Out-of-bounds Write
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Credit
HaiND from the Post and Telecommunication Institute of Technology, Yusuke Nakamura
Description
L-SMASH through 2.14.5 contains a heap out-of-bounds write vulnerability in isom_read_hdlr() and isom_read_dref_entry() in core/read.c triggered by oversized box sizes. Attackers can supply crafted MP4 or MOV files declaring hdlr or url box sizes larger than remaining data, stalling the stream position and corrupting heap memory to crash applications.

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