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19 lines
756 B
Diff
19 lines
756 B
Diff
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Fix CVE-2016-1867 (Out-of-bounds read in jpc_pi_nextcprl()).
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Copied from SUSE.
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https://bugzilla.suse.com/show_bug.cgi?id=961886
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https://bugzilla.redhat.com/show_bug.cgi?id=1298135
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--- jasper-1.900.1/src/libjasper/jpc/jpc_t2cod.c 2007-01-19 22:43:07.000000000 +0100
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+++ jasper-1.900.1/src/libjasper/jpc/jpc_t2cod.c 2016-01-14 14:22:24.569056412 +0100
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@@ -429,7 +429,7 @@
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}
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for (pi->compno = pchg->compnostart, pi->picomp =
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- &pi->picomps[pi->compno]; pi->compno < JAS_CAST(int, pchg->compnoend); ++pi->compno,
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+ &pi->picomps[pi->compno]; pi->compno < JAS_CAST(int, pchg->compnoend) && pi->compno < pi->numcomps; ++pi->compno,
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++pi->picomp) {
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pirlvl = pi->picomp->pirlvls;
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pi->xstep = pi->picomp->hsamp * (1 << (pirlvl->prcwidthexpn +
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