ArchLinux: 201706-13: tor: denial of service
Summary
- CVE-2017-0375 (denial of service)
The hidden-service feature in Tor before 0.3.0.8 allows a denial of
service (assertion failure and daemon exit) in the
relay_send_end_cell_from_edge_ function via a malformed BEGIN cell.
- CVE-2017-0376 (denial of service)
The hidden-service feature in Tor before 0.3.0.8 allows a denial of
service (assertion failure and daemon exit) in the
connection_edge_process_relay_cell function via a BEGIN_DIR cell on a
rendezvous circuit.
Resolution
Upgrade to 0.3.0.8-1.
# pacman -Syu "tor>=0.3.0.8-1"
The problems have been fixed upstream in version 0.3.0.8.
References
https://bugs.archlinux.org/task/54439 https://lists.torproject.org/pipermail/tor-announce/2017-June/000131.html https://trac.torproject.org/projects/tor/ticket/22493 https://github.com/torproject/tor/commit/79b59a2dfcb68897ee89d98587d09e55f07e68d7 https://trac.torproject.org/projects/tor/ticket/22494 https://github.com/torproject/tor/commit/56a7c5bc15e0447203a491c1ee37de9939ad1dcd https://security.archlinux.org/CVE-2017-0375 https://security.archlinux.org/CVE-2017-0376
Workaround
None.