31d289a475
Non-exhaustively fixes CVE-2016-9844, CVE-2018-1000035, CVE-2018-18384, and CVE-2019-13232. * gnu/packages/patches/unzip-COVSCAN-fix-unterminated-string.patch, gnu/packages/patches/unzip-CVE-2016-9844.patch, gnu/packages/patches/unzip-CVE-2018-1000035.patch, gnu/packages/patches/unzip-CVE-2018-18384.patch, gnu/packages/patches/unzip-case-insensitive.patch, gnu/packages/patches/unzip-alt-iconv-utf8-print.patch, gnu/packages/patches/unzip-alt-iconv-utf8.patch, gnu/packages/patches/unzip-close.patch, gnu/packages/patches/unzip-exec-shield.patch, gnu/packages/patches/unzip-fix-recmatch.patch, gnu/packages/patches/unzip-manpage-fix.patch, gnu/packages/patches/unzip-overflow.patch, gnu/packages/patches/unzip-symlink.patch, gnu/packages/patches/unzip-timestamp.patch, gnu/packages/patches/unzip-valgrind.patch, gnu/packages/patches/unzip-x-option.patch, gnu/packages/patches/unzip-zipbomb-manpage.patch, gnu/packages/patches/unzip-zipbomb-part1.patch, gnu/packages/patches/unzip-zipbomb-part2.patch, gnu/packages/patches/unzip-zipbomb-part3.patch: New patches. * gnu/local.mk (dist_patch_DATA): Register them. * gnu/packages/compression.scm (unzip/fixed): New variable. Apply patches. (unzip)[replacement]: Graft.
42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
From: "Steven M. Schweda" <sms@antinode.info>
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Subject: Do not ignore extra fields containing Unix Timestamps
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Bug-Debian: https://bugs.debian.org/842993
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X-Debian-version: 6.0-21
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--- a/process.c
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+++ b/process.c
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@@ -2914,10 +2914,13 @@
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break;
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case EF_IZUNIX2:
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- if (have_new_type_eb == 0) {
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- flags &= ~0x0ff; /* ignore any previous IZUNIX field */
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+ if (have_new_type_eb == 0) { /* (< 1) */
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have_new_type_eb = 1;
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}
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+ if (have_new_type_eb <= 1) {
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+ /* Ignore any prior (EF_IZUNIX/EF_PKUNIX) UID/GID. */
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+ flags &= 0x0ff;
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+ }
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#ifdef IZ_HAVE_UXUIDGID
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if (have_new_type_eb > 1)
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break; /* IZUNIX3 overrides IZUNIX2 e.f. block ! */
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@@ -2933,6 +2936,8 @@
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/* new 3rd generation Unix ef */
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have_new_type_eb = 2;
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+ /* Ignore any prior EF_IZUNIX/EF_PKUNIX/EF_IZUNIX2 UID/GID. */
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+ flags &= 0x0ff;
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/*
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Version 1 byte version of this extra field, currently 1
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UIDSize 1 byte Size of UID field
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@@ -2953,8 +2958,6 @@
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uid_size = *((EB_HEADSIZE + 1) + ef_buf);
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gid_size = *((EB_HEADSIZE + uid_size + 2) + ef_buf);
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- flags &= ~0x0ff; /* ignore any previous UNIX field */
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-
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if ( read_ux3_value((EB_HEADSIZE + 2) + ef_buf,
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uid_size, &z_uidgid[0])
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&&
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