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CVE-2021-23159.patch
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File CVE-2021-23159.patch of Package A_15.5-sox
From: Helmut Grohne <helmut@subdivi.de> Subject: hcom: validate dictsize Bug: https://sourceforge.net/p/sox/bugs/350/ Bug: https://sourceforge.net/p/sox/bugs/352/ Bug-Debian: https://bugs.debian.org/1021133 Bug-Debian: https://bugs.debian.org/1021134 This patch fixes both CVE-2021-23159 and CVE-2021-23172. --- a/src/hcom.c +++ b/src/hcom.c @@ -141,6 +141,11 @@ return (SOX_EOF); } lsx_readw(ft, &dictsize); + if (dictsize == 0 || dictsize > 511) + { + lsx_fail_errno(ft, SOX_EHDR, "Implausible dictionary size in HCOM header"); + return SOX_EOF; + } /* Translate to sox parameters */ ft->encoding.encoding = SOX_ENCODING_HCOM;
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