Mageia alert MGASA-2018-0180 (libtiff)

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Mageia Updates <buildsystem-daemon@mageia.org> 
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updates-announce@ml.mageia.org 
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[updates-announce] MGASA-2018-0180: Updated libtiff packages fix security vulnerabilities 
Date:
    	     
 
Mon, 19 Mar 2018 13:14:04 +0100
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<20180319121404.DF7099FB11@duvel.mageia.org>
MGASA-2018-0180 - Updated libtiff packages fix security vulnerabilities

Publication date: 19 Mar 2018
URL: https://advisories.mageia.org/MGASA-2018-0180.html
Type: security
Affected Mageia releases: 5, 6
CVE: CVE-2017-11613,
     CVE-2018-5784

Description:
In LibTIFF 4.0.8, there is a denial of service vulnerability in the
TIFFOpen function. A crafted input will lead to a denial of service
attack. During the TIFFOpen process, td_imagelength is not checked. The
value of td_imagelength can be directly controlled by an input file. In
the ChopUpSingleUncompressedStrip function, the _TIFFCheckMalloc
function is called based on td_imagelength. If we set the value of
td_imagelength close to the amount of system memory, it will hang the
system or trigger the OOM killer. (CVE-2017-11613)

In LibTIFF 4.0.9, there is an uncontrolled resource consumption in the
TIFFSetDirectory function of tif_dir.c. Remote attackers could leverage
this vulnerability to cause a denial of service via a crafted tif file.
This occurs because the declared number of directory entries is not
validated against the actual number of directory entries. (CVE-2018-5784)

References:
- https://bugs.mageia.org/show_bug.cgi?id=22799
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5784

SRPMS:
- 5/core/libtiff-4.0.9-1.2.mga5
- 6/core/libtiff-4.0.9-1.2.mga6