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openSUSE:Step:15-SP4
curl-mini.27112
curl-CVE-2021-22898.patch
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File curl-CVE-2021-22898.patch of Package curl-mini.27112
From 280f4238182c4f2bc5843ce1fefce3dbc2220033 Mon Sep 17 00:00:00 2001 From: Harry Sintonen <sintonen@iki.fi> Date: Fri, 7 May 2021 13:09:57 +0200 Subject: [PATCH] telnet: check sscanf() for correct number of matches CVE-2021-22898 Bug: https://curl.se/docs/CVE-2021-22898.html --- lib/telnet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: curl-7.60.0/lib/telnet.c =================================================================== --- curl-7.60.0.orig/lib/telnet.c +++ curl-7.60.0/lib/telnet.c @@ -971,7 +971,7 @@ static void suboption(struct connectdata tmplen = (strlen(v->data) + 1); /* Add the variable only if it fits */ if(len + tmplen < (int)sizeof(temp)-6) { - if(sscanf(v->data, "%127[^,],%127s", varname, varval)) { + if(sscanf(v->data, "%127[^,],%127s", varname, varval) == 2) { snprintf((char *)&temp[len], sizeof(temp) - len, "%c%s%c%s", CURL_NEW_ENV_VAR, varname, CURL_NEW_ENV_VALUE, varval);
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