CVE-2020-24342
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@ -0,0 +1,22 @@
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diff -up lua-5.4.0/src/ldo.c.CVE-2020-24342 lua-5.4.0/src/ldo.c
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--- lua-5.4.0/src/ldo.c.CVE-2020-24342 2020-09-02 14:56:36.939443912 -0400
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+++ lua-5.4.0/src/ldo.c 2020-09-02 14:57:47.765341519 -0400
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@@ -515,14 +515,13 @@ void luaD_call (lua_State *L, StkId func
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/*
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** Similar to 'luaD_call', but does not allow yields during the call.
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-** If there is a stack overflow, freeing all CI structures will
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-** force the subsequent call to invoke 'luaE_extendCI', which then
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-** will raise any errors.
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*/
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void luaD_callnoyield (lua_State *L, StkId func, int nResults) {
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incXCcalls(L);
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- if (getCcalls(L) <= CSTACKERR) /* possible stack overflow? */
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- luaE_freeCI(L);
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+ if (getCcalls(L) <= CSTACKERR) { /* possible C stack overflow? */
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+ luaE_exitCcall(L); /* to compensate decrement in next call */
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+ luaE_enterCcall(L); /* check properly */
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+ }
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luaD_call(L, func, nResults);
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decXCcalls(L);
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}
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10
lua.spec
10
lua.spec
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@ -15,7 +15,7 @@
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Name: lua
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Version: %{major_version}.0
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Release: 6%{?dist}
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Release: 7%{?dist}
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Summary: Powerful light-weight programming language
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License: MIT
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URL: http://www.lua.org/
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@ -59,6 +59,7 @@ Patch17: %{name}-5.4.0-CVE-2020-24370.patch
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Patch18: %{name}-5.3.5-CVE-2020-24370.patch
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# This is bug 9
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Patch19: %{name}-5.4.0-CVE-2020-24371.patch
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Patch20: %{name}-5.4.0-CVE-2020-24342.patch
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BuildRequires: automake autoconf libtool readline-devel ncurses-devel
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Requires: lua-libs = %{version}-%{release}
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@ -121,6 +122,7 @@ mv src/luaconf.h src/luaconf.h.template.in
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%patch16 -p1 -b .CVE-2020-24369
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%patch17 -p1 -b .CVE-2020-24370
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%patch19 -p1 -b .CVE-2020-24371
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%patch20 -p1 -b .CVE-2020-24342
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# Put proper version in configure.ac, patch0 hardcodes 5.3.0
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sed -i 's|5.3.0|%{version}|g' configure.ac
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autoreconf -ifv
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@ -246,6 +248,9 @@ install -Dpm 0644 %{SOURCE1001} $RPM_BUILD_ROOT/%{_fileattrsdir}/lua.attr
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%{_libdir}/*.a
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%changelog
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* Wed Sep 2 2020 Tom Callaway <spot@fedoraproject.org> - 5.4.0-7
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- apply upstream fix for CVE-2020-24342
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* Wed Aug 19 2020 Tom Callaway <spot@fedoraproject.org> - 5.4.0-6
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- apply upstream fix for CVE-2020-24370, CVE-2020-24371
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@ -266,9 +271,6 @@ install -Dpm 0644 %{SOURCE1001} $RPM_BUILD_ROOT/%{_fileattrsdir}/lua.attr
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* Mon Jun 29 2020 Tom Callaway <spot@fedoraproject.org> - 5.4.0-1
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- update to 5.4.0
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* Wed Oct 23 2019 Tom Callaway <spot@fedoraproject.org> - 5.4.0-0.1.beta
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- 5.4.0-beta
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* Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 5.3.5-7
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
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