[Advisory]LibRaw Multi Memory error[CVE-2015-8366 and CVE-2015-8367]

[ChenQin <chenqin () topsec com cn>]

1. Overview
The LibRaw raw image decoder  <= 0.17 has multi vulnerability to cause memory errors,which may cause code execution or 
other problems.Problems has been fixed in 0.17.1(www.libraw.org/news/libraw-0-17-1).

2.Descryption
Case CVE-2015-8366,Libraw smal_decode_segment function do not handle index carefully,which may cause index overflow. 
Case CVE-2015-8367,Libraw phase_one_correct function do not handle memory object’s initialization correctly,which may 
cause some other problems.

3.The Solution 
patches for this problem that changes the default is available(git-format-patch).



4.Recommendations 
We suggest you take one of the following actions, in order of preference:
A - Upgrade LibRaw to the latest(www.libraw.org/download)
B - Apply the patch to your version and rebuild

5.Vendor Status
- 2015/11/24 I discovered the memory error bug and reported to the info () libraw org.
- 2015/11/25 The vendor response with the coordination and publish new release(www.libraw.org/news/libraw-0-17-1 
<http://www.libraw.org/news/libraw-0-17-1>).
- 2015/11/26 Cve-id request to the cve-assign () mitre org.
- 2015/11/27 Cve-id assigned,CVE-2015-8366 and CVE-2015-8367,Mailed Vendor.
- 2015/11/30 Publish to fulldisclosure () seclists org.

6.Credit:
ChenQin <chenqin () topsec com cn> of Topsec Security Team(www.topsec.com.cn)
--
Huakong Mansion, 1 East Shangdi Road, Haidian District, Beijing,100085 CN

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