CVE-2016-1238

Description

(1) cpan/Archive-Tar/bin/ptar, (2) cpan/Archive-Tar/bin/ptardiff, (3) cpan/Archive-Tar/bin/ptargrep, (4) cpan/CPAN/scripts/cpan, (5) cpan/Digest-SHA/shasum, (6) cpan/Encode/bin/enc2xs, (7) cpan/Encode/bin/encguess, (8) cpan/Encode/bin/piconv, (9) cpan/Encode/bin/ucmlint, (10) cpan/Encode/bin/unidump, (11) cpan/ExtUtils-MakeMaker/bin/instmodsh, (12) cpan/IO-Compress/bin/zipdetails, (13) cpan/JSON-PP/bin/json_pp, (14) cpan/Test-Harness/bin/prove, (15) dist/ExtUtils-ParseXS/lib/ExtUtils/xsubpp, (16) dist/Module-CoreList/corelist, (17) ext/Pod-Html/bin/pod2html, (18) utils/c2ph.PL, (19) utils/h2ph.PL, (20) utils/h2xs.PL, (21) utils/libnetcfg.PL, (22) utils/perlbug.PL, (23) utils/perldoc.PL, (24) utils/perlivp.PL, and (25) utils/splain.PL in Perl 5.x before 5.22.3-RC2 and 5.24 before 5.24.1-RC2 do not properly remove . (period) characters from the end of the includes directory array, which might allow local users to gain privileges via a Trojan horse module under the current working directory.

How to fix CVE-2016-1238

To remediate CVE-2016-1238, upgrade the affected package to a fixed version below.

• —upgrade to 5.22.3-r0 or later
• —upgrade to 3.4.2-r0 or later
• —upgrade to 0.29-1+deb7u1 or later
• —upgrade to 5.14.2-21+deb7u4 or later
• —upgrade to 5.20.2-3+deb8u6 or later
• —upgrade to 5.22.2-3 or later
• —upgrade to 3.4.2-0+deb8u1 or later

Is CVE-2016-1238 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (7)

• from 0, < 5.22.3-r0
• from 0, < 3.4.2-r0
• from 0, < 0.29-1+deb7u1
• from 0, < 5.14.2-21+deb7u4
• from 0, < 5.20.2-3+deb8u6
• from 0, < 5.22.2-3
• from 0, < 3.4.2-0+deb8u1

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2016-1238
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2016-1238