diff options
Diffstat (limited to 'gnu/packages/patches/perl-archive-tar-CVE-2018-12015.patch')
| -rw-r--r-- | gnu/packages/patches/perl-archive-tar-CVE-2018-12015.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gnu/packages/patches/perl-archive-tar-CVE-2018-12015.patch b/gnu/packages/patches/perl-archive-tar-CVE-2018-12015.patch new file mode 100644 index 0000000000..6460cf5855 --- /dev/null +++ b/gnu/packages/patches/perl-archive-tar-CVE-2018-12015.patch @@ -0,0 +1,36 @@ +Fix CVE-2018-12015: + +https://security-tracker.debian.org/tracker/CVE-2018-12015 +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12015 +https://rt.cpan.org/Ticket/Display.html?id=125523 + +Patch taken from this upstream commit and adapted to apply to +the bundled copy in the Perl distribution: + +https://github.com/jib/archive-tar-new/commit/ae65651eab053fc6dc4590dbb863a268215c1fc5 + +diff --git a/cpan/Archive-Tar/lib/Archive/Tar.pm b/cpan/Archive-Tar/lib/Archive/Tar.pm +index 6244369..a83975f 100644 +--- a/cpan/Archive-Tar/lib/Archive/Tar.pm ++++ b/cpan/Archive-Tar/lib/Archive/Tar.pm +@@ -845,6 +845,20 @@ sub _extract_file { + return; + } + ++ ### If a file system already contains a block device with the same name as ++ ### the being extracted regular file, we would write the file's content ++ ### to the block device. So remove the existing file (block device) now. ++ ### If an archive contains multiple same-named entries, the last one ++ ### should replace the previous ones. So remove the old file now. ++ ### If the old entry is a symlink to a file outside of the CWD, the new ++ ### entry would create a file there. This is CVE-2018-12015 ++ ### <https://rt.cpan.org/Ticket/Display.html?id=125523>. ++ if (-l $full || -e _) { ++ if (!unlink $full) { ++ $self->_error( qq[Could not remove old file '$full': $!] ); ++ return; ++ } ++ } + if( length $entry->type && $entry->is_file ) { + my $fh = IO::File->new; + $fh->open( $full, '>' ) or ( |