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21 lines
900 B
21 lines
900 B
--- a/extract.c
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+++ b/extract.c
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@@ -1257,8 +1257,17 @@ static int extract_or_test_entrylist(__G
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if (G.lrec.compression_method == STORED) {
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zusz_t csiz_decrypted = G.lrec.csize;
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- if (G.pInfo->encrypted)
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+ if (G.pInfo->encrypted) {
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+ if (csiz_decrypted <= 12) {
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+ /* handle the error now to prevent unsigned overflow */
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+ Info(slide, 0x401, ((char *)slide,
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+ LoadFarStringSmall(ErrUnzipNoFile),
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+ LoadFarString(InvalidComprData),
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+ LoadFarStringSmall2(Inflate)));
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+ return PK_ERR;
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+ }
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csiz_decrypted -= 12;
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+ }
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if (G.lrec.ucsize != csiz_decrypted) {
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Info(slide, 0x401, ((char *)slide,
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LoadFarStringSmall2(WrnStorUCSizCSizDiff),
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