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CVE-2016-3186 libtiff: buffer overflow in the readextension function in gif2tiff.c allows remote attackers to cause a denial of service via a crafted GIF file External References: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-3186 https://bugzilla.redhat.com/show_bug.cgi?id=1319503 Patch from: https://bugzilla.redhat.com/attachment.cgi?id=1144235&action=diff (From OE-Core rev: 3d818fc862b1d85252443fefa2222262542a10ae) Signed-off-by: Yi Zhao <yi.zhao@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
25 lines
942 B
Diff
25 lines
942 B
Diff
Buffer overflow in the readextension function in gif2tiff.c
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allows remote attackers to cause a denial of service via a crafted GIF file.
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External References:
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https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-3186
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https://bugzilla.redhat.com/show_bug.cgi?id=1319503
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CVE: CVE-2016-3186
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Upstream-Status: Backport (RedHat)
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https://bugzilla.redhat.com/attachment.cgi?id=1144235&action=diff
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Signed-off-by: Yi Zhao <yi.zhao@windirver.com>
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--- tiff-4.0.6/tools/gif2tiff.c 2016-04-06 15:43:01.586048341 +0200
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+++ tiff-4.0.6/tools/gif2tiff.c 2016-04-06 15:48:05.523207710 +0200
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@@ -349,7 +349,7 @@
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int status = 1;
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(void) getc(infile);
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- while ((count = getc(infile)) && count <= 255)
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+ while ((count = getc(infile)) && count >= 0 && count <= 255)
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if (fread(buf, 1, count, infile) != (size_t) count) {
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fprintf(stderr, "short read from file %s (%s)\n",
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filename, strerror(errno));
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