Loading ChangeLog +37 −0 Changes for ChangeLog: 37 added lines, 0 removed lines. Original line number Diff line number Diff line Loading @@ -10,6 +10,43 @@ Changes in version 0.4.6.5 - 2021-06-1? Below are the changes since 0.4.6.4-rc. For a complete list of changes since 0.4.5.8, see the ReleaseNotes file. o Major bugfixes (security): - Don't allow relays to spoof RELAY_END or RELAY_RESOLVED cell on half-closed streams. Previously, clients failed to validate which hop sent these cells: this would allow a relay on a circuit to end a stream that wasn't actually built with it. Fixes bug 40389; bugfix on 0.3.5.1-alpha. This issue is also tracked as TROVE-2021- 003 and CVE-2021-34548. o Major bugfixes (security, defense-in-depth): - Detect more failure conditions from the OpenSSL RNG code. Previously, we would detect errors from a missing RNG implementation, but not failures from the RNG code itself. Fortunately, it appears those failures do not happen in practice when Tor is using OpenSSL's default RNG implementation. Fixes bug 40390; bugfix on 0.2.8.1-alpha. This issue is also tracked as TROVE-2021-004. Reported by Jann Horn at Google's Project Zero. o Major bugfixes (security, denial of service): - Resist a hashtable-based CPU denial-of-service attack against relays. Previously we used a naive unkeyed hash function to look up circuits in a circuitmux object. An attacker could exploit this to construct circuits with chosen circuit IDs, to create collisions and make the hash table inefficient. Now we use a SipHash construction here instead. Fixes bug 40391; bugfix on 0.2.4.4-alpha. This issue is also tracked as TROVE-2021-005 and CVE-2021-34549. Reported by Jann Horn from Google's Project Zero. - Fix an out-of-bounds memory access in v3 onion service descriptor parsing. An attacker could exploit this bug by crafting an onion service descriptor that would crash any client that tried to visit it. Fixes bug 40392; bugfix on 0.3.0.1-alpha. This issue is also tracked as TROVE-2021-006 and CVE-2021-34550. Reported by Sergei Glazunov from Google's Project Zero. o Minor features (geoip data): - Update the geoip files to match the IPFire Location Database, as retrieved on 2021/06/10. o Minor features (logging, diagnostic): - Log decompression failures at a higher severity level, since they can help provide missing context for other warning messages. We ReleaseNotes +37 −0 Changes for ReleaseNotes: 37 added lines, 0 removed lines. Original line number Diff line number Diff line Loading @@ -8,6 +8,39 @@ Changes in version 0.4.6.5 - 2021-06-1? Below are the changes since 0.4.5.8. For a list of changes since 0.4.6.4-rc, see the ChangeLog file. o Major bugfixes (security): - Don't allow relays to spoof RELAY_END or RELAY_RESOLVED cell on half-closed streams. Previously, clients failed to validate which hop sent these cells: this would allow a relay on a circuit to end a stream that wasn't actually built with it. Fixes bug 40389; bugfix on 0.3.5.1-alpha. This issue is also tracked as TROVE-2021- 003 and CVE-2021-34548. o Major bugfixes (security, defense-in-depth): - Detect more failure conditions from the OpenSSL RNG code. Previously, we would detect errors from a missing RNG implementation, but not failures from the RNG code itself. Fortunately, it appears those failures do not happen in practice when Tor is using OpenSSL's default RNG implementation. Fixes bug 40390; bugfix on 0.2.8.1-alpha. This issue is also tracked as TROVE-2021-004. Reported by Jann Horn at Google's Project Zero. o Major bugfixes (security, denial of service): - Resist a hashtable-based CPU denial-of-service attack against relays. Previously we used a naive unkeyed hash function to look up circuits in a circuitmux object. An attacker could exploit this to construct circuits with chosen circuit IDs, to create collisions and make the hash table inefficient. Now we use a SipHash construction here instead. Fixes bug 40391; bugfix on 0.2.4.4-alpha. This issue is also tracked as TROVE-2021-005 and CVE-2021-34549. Reported by Jann Horn from Google's Project Zero. - Fix an out-of-bounds memory access in v3 onion service descriptor parsing. An attacker could exploit this bug by crafting an onion service descriptor that would crash any client that tried to visit it. Fixes bug 40392; bugfix on 0.3.0.1-alpha. This issue is also tracked as TROVE-2021-006 and CVE-2021-34550. Reported by Sergei Glazunov from Google's Project Zero. o Major features (control port, onion services): - Add controller support for creating version 3 onion services with client authorization. Previously, only v2 onion services could be Loading Loading @@ -114,6 +147,10 @@ Changes in version 0.4.6.5 - 2021-06-1? control over whether the client can become dormant from inactivity. Most people won't need this. Closes ticket 40228. o Minor features (geoip data): - Update the geoip files to match the IPFire Location Database, as retrieved on 2021/06/10. o Minor features (logging): - Edit heartbeat log messages so that more of them begin with the string "Heartbeat: ". Closes ticket 40322; patch changes/bug40391deleted 100644 → 0 +0 −9 Changes for changes/bug40391: 0 added lines, 9 removed lines. Original line number Diff line number Diff line o Major bugfixes (security): - Resist a hashtable-based CPU denial-of-service attack against relays. Previously we used a naive unkeyed hash function to look up circuits in a circuitmux object. An attacker could exploit this to construct circuits with chosen circuit IDs in order to try to create collisions and make the hash table inefficient. Now we use a SipHash construction for this hash table instead. Fixes bug 40391; bugfix on 0.2.4.4-alpha. This issue is also tracked as TROVE-2021-005. Reported by Jann Horn from Google's Project Zero. changes/bug40392deleted 100644 → 0 +0 −4 Changes for changes/bug40392: 0 added lines, 4 removed lines. Original line number Diff line number Diff line o Major bugfixes (security, denial of service, onion services): - Fix an out-of-bounds memory access in v3 descriptor parsing. Fixes bug 40392; bugfix on 0.3.0.1-alpha. This issue is also tracked as TROVE-2021-006. Reported by Sergei Glazunov from Google's Project Zero. No newline at end of file changes/geoip-2021-06-10deleted 100644 → 0 +0 −3 Changes for changes/geoip-2021-06-10: 0 added lines, 3 removed lines. Original line number Diff line number Diff line o Minor features (geoip data): - Update the geoip files to match the IPFire Location Database, as retrieved on 2021/06/10. Loading
ChangeLog +37 −0 Changes for ChangeLog: 37 added lines, 0 removed lines. Original line number Diff line number Diff line Loading @@ -10,6 +10,43 @@ Changes in version 0.4.6.5 - 2021-06-1? Below are the changes since 0.4.6.4-rc. For a complete list of changes since 0.4.5.8, see the ReleaseNotes file. o Major bugfixes (security): - Don't allow relays to spoof RELAY_END or RELAY_RESOLVED cell on half-closed streams. Previously, clients failed to validate which hop sent these cells: this would allow a relay on a circuit to end a stream that wasn't actually built with it. Fixes bug 40389; bugfix on 0.3.5.1-alpha. This issue is also tracked as TROVE-2021- 003 and CVE-2021-34548. o Major bugfixes (security, defense-in-depth): - Detect more failure conditions from the OpenSSL RNG code. Previously, we would detect errors from a missing RNG implementation, but not failures from the RNG code itself. Fortunately, it appears those failures do not happen in practice when Tor is using OpenSSL's default RNG implementation. Fixes bug 40390; bugfix on 0.2.8.1-alpha. This issue is also tracked as TROVE-2021-004. Reported by Jann Horn at Google's Project Zero. o Major bugfixes (security, denial of service): - Resist a hashtable-based CPU denial-of-service attack against relays. Previously we used a naive unkeyed hash function to look up circuits in a circuitmux object. An attacker could exploit this to construct circuits with chosen circuit IDs, to create collisions and make the hash table inefficient. Now we use a SipHash construction here instead. Fixes bug 40391; bugfix on 0.2.4.4-alpha. This issue is also tracked as TROVE-2021-005 and CVE-2021-34549. Reported by Jann Horn from Google's Project Zero. - Fix an out-of-bounds memory access in v3 onion service descriptor parsing. An attacker could exploit this bug by crafting an onion service descriptor that would crash any client that tried to visit it. Fixes bug 40392; bugfix on 0.3.0.1-alpha. This issue is also tracked as TROVE-2021-006 and CVE-2021-34550. Reported by Sergei Glazunov from Google's Project Zero. o Minor features (geoip data): - Update the geoip files to match the IPFire Location Database, as retrieved on 2021/06/10. o Minor features (logging, diagnostic): - Log decompression failures at a higher severity level, since they can help provide missing context for other warning messages. We
ReleaseNotes +37 −0 Changes for ReleaseNotes: 37 added lines, 0 removed lines. Original line number Diff line number Diff line Loading @@ -8,6 +8,39 @@ Changes in version 0.4.6.5 - 2021-06-1? Below are the changes since 0.4.5.8. For a list of changes since 0.4.6.4-rc, see the ChangeLog file. o Major bugfixes (security): - Don't allow relays to spoof RELAY_END or RELAY_RESOLVED cell on half-closed streams. Previously, clients failed to validate which hop sent these cells: this would allow a relay on a circuit to end a stream that wasn't actually built with it. Fixes bug 40389; bugfix on 0.3.5.1-alpha. This issue is also tracked as TROVE-2021- 003 and CVE-2021-34548. o Major bugfixes (security, defense-in-depth): - Detect more failure conditions from the OpenSSL RNG code. Previously, we would detect errors from a missing RNG implementation, but not failures from the RNG code itself. Fortunately, it appears those failures do not happen in practice when Tor is using OpenSSL's default RNG implementation. Fixes bug 40390; bugfix on 0.2.8.1-alpha. This issue is also tracked as TROVE-2021-004. Reported by Jann Horn at Google's Project Zero. o Major bugfixes (security, denial of service): - Resist a hashtable-based CPU denial-of-service attack against relays. Previously we used a naive unkeyed hash function to look up circuits in a circuitmux object. An attacker could exploit this to construct circuits with chosen circuit IDs, to create collisions and make the hash table inefficient. Now we use a SipHash construction here instead. Fixes bug 40391; bugfix on 0.2.4.4-alpha. This issue is also tracked as TROVE-2021-005 and CVE-2021-34549. Reported by Jann Horn from Google's Project Zero. - Fix an out-of-bounds memory access in v3 onion service descriptor parsing. An attacker could exploit this bug by crafting an onion service descriptor that would crash any client that tried to visit it. Fixes bug 40392; bugfix on 0.3.0.1-alpha. This issue is also tracked as TROVE-2021-006 and CVE-2021-34550. Reported by Sergei Glazunov from Google's Project Zero. o Major features (control port, onion services): - Add controller support for creating version 3 onion services with client authorization. Previously, only v2 onion services could be Loading Loading @@ -114,6 +147,10 @@ Changes in version 0.4.6.5 - 2021-06-1? control over whether the client can become dormant from inactivity. Most people won't need this. Closes ticket 40228. o Minor features (geoip data): - Update the geoip files to match the IPFire Location Database, as retrieved on 2021/06/10. o Minor features (logging): - Edit heartbeat log messages so that more of them begin with the string "Heartbeat: ". Closes ticket 40322; patch
changes/bug40391deleted 100644 → 0 +0 −9 Changes for changes/bug40391: 0 added lines, 9 removed lines. Original line number Diff line number Diff line o Major bugfixes (security): - Resist a hashtable-based CPU denial-of-service attack against relays. Previously we used a naive unkeyed hash function to look up circuits in a circuitmux object. An attacker could exploit this to construct circuits with chosen circuit IDs in order to try to create collisions and make the hash table inefficient. Now we use a SipHash construction for this hash table instead. Fixes bug 40391; bugfix on 0.2.4.4-alpha. This issue is also tracked as TROVE-2021-005. Reported by Jann Horn from Google's Project Zero.
changes/bug40392deleted 100644 → 0 +0 −4 Changes for changes/bug40392: 0 added lines, 4 removed lines. Original line number Diff line number Diff line o Major bugfixes (security, denial of service, onion services): - Fix an out-of-bounds memory access in v3 descriptor parsing. Fixes bug 40392; bugfix on 0.3.0.1-alpha. This issue is also tracked as TROVE-2021-006. Reported by Sergei Glazunov from Google's Project Zero. No newline at end of file
changes/geoip-2021-06-10deleted 100644 → 0 +0 −3 Changes for changes/geoip-2021-06-10: 0 added lines, 3 removed lines. Original line number Diff line number Diff line o Minor features (geoip data): - Update the geoip files to match the IPFire Location Database, as retrieved on 2021/06/10.
