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[Bug network/19696] New: libresolv does not enforce timeouts on TCP connections
- From: "fweimer at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Sat, 20 Feb 2016 13:48:12 +0000
- Subject: [Bug network/19696] New: libresolv does not enforce timeouts on TCP connections
- Auto-submitted: auto-generated
https://sourceware.org/bugzilla/show_bug.cgi?id=19696
Bug ID: 19696
Summary: libresolv does not enforce timeouts on TCP connections
Product: glibc
Version: 2.24
Status: NEW
Severity: normal
Priority: P2
Component: network
Assignee: unassigned at sourceware dot org
Reporter: fweimer at redhat dot com
Target Milestone: ---
Flags: security-
The TCP sockets opened by libresolv do not specify timeouts (for connection,
sending and receiving). As a result, connection timeouts take much longer than
configured, and applications performing a TCP lookup can hang indefinitely if
the TCP connection is severed at the wrong time (without FIN or RST segments
being received).
This looks like a fairly important reliability fix.
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