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openSUSE:Backports:SLE-15-SP3:Update
connman.17591
0005-gweb-Fix-OOB-write-in-received_data.patch
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File 0005-gweb-Fix-OOB-write-in-received_data.patch of Package connman.17591
From d1a5ede5d255bde8ef707f8441b997563b9312bd Mon Sep 17 00:00:00 2001 From: Nathan Crandall <ncrandall@tesla.com> Date: Tue, 12 Jul 2022 08:56:34 +0200 Subject: [PATCH 5/5] gweb: Fix OOB write in received_data() There is a mismatch of handling binary vs. C-string data with memchr and strlen, resulting in pos, count, and bytes_read to become out of sync and result in a heap overflow. Instead, do not treat the buffer as an ASCII C-string. We calculate the count based on the return value of memchr, instead of strlen. Fixes: CVE-2022-32292 --- gweb/gweb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/gweb/gweb.c +++ b/gweb/gweb.c @@ -918,7 +918,7 @@ static gboolean received_data(GIOChannel } *pos = '\0'; - count = strlen((char *) ptr); + count = pos - ptr; if (count > 0 && ptr[count - 1] == '\r') { ptr[--count] = '\0'; bytes_read--;
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