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Diffstat (limited to 'openjpeg2_CVE-2020-27824.patch')
| -rw-r--r-- | openjpeg2_CVE-2020-27824.patch | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/openjpeg2_CVE-2020-27824.patch b/openjpeg2_CVE-2020-27824.patch new file mode 100644 index 0000000..8301f7e --- /dev/null +++ b/openjpeg2_CVE-2020-27824.patch @@ -0,0 +1,23 @@ +From 6daf5f3e1ec6eff03b7982889874a3de6617db8d Mon Sep 17 00:00:00 2001 +From: Even Rouault <even.rouault@spatialys.com> +Date: Mon, 30 Nov 2020 22:37:07 +0100 +Subject: [PATCH] Encoder: avoid global buffer overflow on irreversible + conversion when too many decomposition levels are specified (fixes #1286) + +--- + src/lib/openjp2/dwt.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/lib/openjp2/dwt.c b/src/lib/openjp2/dwt.c +index ee9eb5e63..4164ba090 100644 +--- a/src/lib/openjp2/dwt.c ++++ b/src/lib/openjp2/dwt.c +@@ -1976,7 +1976,7 @@ void opj_dwt_calc_explicit_stepsizes(opj_tccp_t * tccp, OPJ_UINT32 prec) + if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) { + stepsize = 1.0; + } else { +- OPJ_FLOAT64 norm = opj_dwt_norms_real[orient][level]; ++ OPJ_FLOAT64 norm = opj_dwt_getnorm_real(level, orient); + stepsize = (1 << (gain)) / norm; + } + opj_dwt_encode_stepsize((OPJ_INT32) floor(stepsize * 8192.0), |