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https://git.in.rschanz.org/ryan77627/guix.git
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29 lines
1.2 KiB
Diff
29 lines
1.2 KiB
Diff
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Fix CVE-2017-5974:
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5974
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Patch copied from Debian.
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Index: zziplib-0.13.62/zzip/memdisk.c
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===================================================================
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--- zziplib-0.13.62.orig/zzip/memdisk.c
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+++ zziplib-0.13.62/zzip/memdisk.c
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@@ -216,12 +216,12 @@ zzip_mem_entry_new(ZZIP_DISK * disk, ZZI
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/* override sizes/offsets with zip64 values for largefile support */
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zzip_extra_zip64 *block = (zzip_extra_zip64 *)
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zzip_mem_entry_extra_block(item, ZZIP_EXTRA_zip64);
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- if (block)
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+ if (block && ZZIP_GET16(block->z_datasize) >= (8 + 8 + 8 + 4))
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{
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- item->zz_usize = __zzip_get64(block->z_usize);
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- item->zz_csize = __zzip_get64(block->z_csize);
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- item->zz_offset = __zzip_get64(block->z_offset);
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- item->zz_diskstart = __zzip_get32(block->z_diskstart);
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+ item->zz_usize = ZZIP_GET64(block->z_usize);
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+ item->zz_csize = ZZIP_GET64(block->z_csize);
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+ item->zz_offset = ZZIP_GET64(block->z_offset);
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+ item->zz_diskstart = ZZIP_GET32(block->z_diskstart);
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}
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}
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/* NOTE:
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