Published: 25/08/2017 Updated: 12/10/2018

CVSS v2 Base Score: 5.6 | Impact Score: 7.8 | Exploitability Score: 3.9

CVSS v3 Base Score: 6.1 | Impact Score: 4.2 | Exploitability Score: 1.8

VMScore: 498

Vector: AV:L/AC:L/Au:N/C:P/I:C/A:N

mktexlsr revision 22855 through revision 36625 as packaged in texlive allows local users to write to arbitrary files via a symlink attack.

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tug texlive 20100722
tug texlive 20120701
tug texlive 20110705
tug texlive 20140525
tug texlive 20130530

Several security issues were fixed in Tex Live ...

It was discovered that the mktexlsr script of the texlive package creates temporary files in an insecure way A local attacker could possibly use this flaw to perform a symbolic link attack and overwrite arbitrary files with the privileges of the user running mktexslr, or obtain sensitive information from the temporary files ...

CWE-59 https://www.tug.org/svn/texlive/trunk/Build/source/texk/kpathsea/mktexlsr?view=log https://bugzilla.redhat.com/show_bug.cgi?id=1181167 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=775139 http://www.openwall.com/lists/oss-security/2015/07/30/6 https://www.tug.org/svn/texlive/trunk/Build/source/texk/kpathsea/mktexlsr?r1=19613&r2=22885 https://usn.ubuntu.com/3788-1/https://usn.ubuntu.com/3788-1/https://nvd.nist.gov

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