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e83ef684fc
* gnu/packages/patches/libevent-2.0-evdns-fix-remote-stack-overread.patch, gnu/packages/patches/libevent-2.0-evutil-fix-buffer-overflow.patch, gnu/packages/patches/libevent-2.0-evdns-fix-searching-empty-hostnames.patch: Rename to ... * gnu/packages/patches/libevent-2.0-CVE-2016-10195.patch, gnu/packages/patches/libevent-2.0-CVE-2016-10196.patch, gnu/packages/patches/libevent-2.0-CVE-2016-10197.patch: ... new files. * gnu/local.mk (dist_patch_DATA): Adjust accordingly. * gnu/packages/libevent.scm (libevent-2.0)[sources]: Likewise.
41 lines
1.1 KiB
Diff
41 lines
1.1 KiB
Diff
Fix CVE-2016-10196 (buffer overflow in evutil):
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10196
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https://github.com/libevent/libevent/issues/318
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Patch copied from upstream source repository:
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https://github.com/libevent/libevent/commit/329acc18a0768c21ba22522f01a5c7f46cacc4d5
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From 28bdc2f3f62259d21ccaf7be2b60ef0a53e6f342 Mon Sep 17 00:00:00 2001
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From: Azat Khuzhin <a3at.mail@gmail.com>
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Date: Sun, 31 Jan 2016 00:57:16 +0300
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Subject: [PATCH] evutil_parse_sockaddr_port(): fix buffer overflow
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---
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evutil.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/evutil.c b/evutil.c
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index 33445170..e2dfe6e4 100644
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--- a/evutil.c
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+++ b/evutil.c
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@@ -1808,12 +1808,12 @@ evutil_parse_sockaddr_port(const char *ip_as_string, struct sockaddr *out, int *
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cp = strchr(ip_as_string, ':');
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if (*ip_as_string == '[') {
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- int len;
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+ size_t len;
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if (!(cp = strchr(ip_as_string, ']'))) {
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return -1;
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}
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- len = (int) ( cp-(ip_as_string + 1) );
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- if (len > (int)sizeof(buf)-1) {
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+ len = ( cp-(ip_as_string + 1) );
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+ if (len > sizeof(buf)-1) {
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return -1;
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}
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memcpy(buf, ip_as_string+1, len);
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--
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2.11.0
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