diff --git a/0005-curl-7.61.1-CVE-2018-16840.patch b/0005-curl-7.61.1-CVE-2018-16840.patch new file mode 100644 index 0000000..de546c0 --- /dev/null +++ b/0005-curl-7.61.1-CVE-2018-16840.patch @@ -0,0 +1,39 @@ +From 235f209a0e62edee654be441a50bb0c154edeaa5 Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg +Date: Thu, 18 Oct 2018 15:07:15 +0200 +Subject: [PATCH] Curl_close: clear data->multi_easy on free to avoid + use-after-free + +Regression from b46cfbc068 (7.59.0) +CVE-2018-16840 +Reported-by: Brian Carpenter (Geeknik Labs) + +Bug: https://curl.haxx.se/docs/CVE-2018-16840.html + +Upstream-commit: 81d135d67155c5295b1033679c606165d4e28f3f +Signed-off-by: Kamil Dudka +--- + lib/url.c | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +diff --git a/lib/url.c b/lib/url.c +index f159008..dcc1ecc 100644 +--- a/lib/url.c ++++ b/lib/url.c +@@ -319,10 +319,12 @@ CURLcode Curl_close(struct Curl_easy *data) + and detach this handle from there. */ + curl_multi_remove_handle(data->multi, data); + +- if(data->multi_easy) ++ if(data->multi_easy) { + /* when curl_easy_perform() is used, it creates its own multi handle to + use and this is the one */ + curl_multi_cleanup(data->multi_easy); ++ data->multi_easy = NULL; ++ } + + /* Destroy the timeout list that is held in the easy handle. It is + /normally/ done by curl_multi_remove_handle() but this is "just in +-- +2.17.2 + diff --git a/curl.spec b/curl.spec index 300941f..b13da7b 100644 --- a/curl.spec +++ b/curl.spec @@ -19,6 +19,9 @@ Patch4: 0004-curl-7.61.1-CVE-2018-16842.patch # we need `git apply` to apply this patch BuildRequires: git +# fix use-after-free in handle close (CVE-2018-16840) +Patch5: 0005-curl-7.61.1-CVE-2018-16840.patch + # patch making libcurl multilib ready Patch101: 0101-curl-7.32.0-multilib.patch @@ -181,6 +184,7 @@ be installed. %patch2 -p1 %patch3 -p1 git apply %{PATCH4} +%patch5 -p1 # Fedora patches %patch101 -p1 @@ -348,6 +352,7 @@ rm -f ${RPM_BUILD_ROOT}%{_libdir}/libcurl.la %changelog * Thu Nov 01 2018 Kamil Dudka - 7.61.1-4 +- fix use-after-free in handle close (CVE-2018-16840) - fix bad arethmetic when outputting warnings to stderr (CVE-2018-16842) * Thu Oct 11 2018 Kamil Dudka - 7.61.1-3