Merge pull request #7937 from Kistelini/python3.6
python3: fix CVE-2019-5010
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commit
fee8fc5b52
2 changed files with 33 additions and 1 deletions
32
srcpkgs/python3/patches/CVE-2019-5010.patch
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32
srcpkgs/python3/patches/CVE-2019-5010.patch
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commit 216a4d83c3b72f4fdcd81b588dc3f42cc461739a
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Author: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
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Date: Tue Jan 15 17:16:36 2019 -0800
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bpo-35746: Fix segfault in ssl's cert parser (GH-11569) (GH-11573)
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Fix a NULL pointer deref in ssl module. The cert parser did not handle CRL
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distribution points with empty DP or URI correctly. A malicious or buggy
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certificate can result into segfault.
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Signed-off-by: Christian Heimes <christian@python.org>
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https://bugs.python.org/issue35746
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(cherry picked from commit a37f52436f9aa4b9292878b72f3ff1480e2606c3)
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Co-authored-by: Christian Heimes <christian@python.org>
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diff --git Modules/_ssl.c Modules/_ssl.c
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index a188d6a729..7365630a5e 100644
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--- Modules/_ssl.c
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+++ Modules/_ssl.c
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@@ -1338,6 +1338,10 @@ _get_crl_dp(X509 *certificate) {
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STACK_OF(GENERAL_NAME) *gns;
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dp = sk_DIST_POINT_value(dps, i);
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+ if (dp->distpoint == NULL) {
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+ /* Ignore empty DP value, CVE-2019-5010 */
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+ continue;
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+ }
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gns = dp->distpoint->name.fullname;
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for (j=0; j < sk_GENERAL_NAME_num(gns); j++) {
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@ -4,7 +4,7 @@
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#
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pkgname=python3
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version=3.6.8
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revision=2
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revision=3
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wrksrc="Python-${version}"
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short_desc="Interpreted, interactive, object-oriented programming language (${version%.*} series)"
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maintainer="Juan RP <xtraeme@voidlinux.org>"
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