Begin work on an 0.2.9.10 changelog
This one is much more normal than the 0.2.[45678] changelogs I just started, since there has been a much shorter gap since the most recent 0.2.9 release.
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Nick Mathewson
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3c74bc73fc
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64
ChangeLog
64
ChangeLog
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Changes in version 0.2.9.10 - 2017-03-??
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Tor 0.2.9.10 backports a security fix from later Tor releass.
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Tor 0.2.9.10 also includes fixes for some major issues affecting
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directory authorities, LibreSSL compatibility, and IPv6 correctness.
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The Tor 0.2.9.x release series is now marked as a long-term-support
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series. We intend to backport security fixes to 0.2.9.x until at
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least March of 2020.
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o Major bugfixes (directory authority, 0.3.0.3-alpha):
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- During voting, when marking a relay as a probable sybil, do not
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clear its BadExit flag: sybils can still be bad in other ways
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too. (We still clear the other flags.) Fixes bug 21108; bugfix
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on 0.2.0.13-alpha.
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o Major bugfixes (IPv6 Exits, backport from 0.3.0.3-alpha):
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- Stop rejecting all IPv6 traffic on Exits whose exit policy rejects
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any IPv6 addresses. Instead, only reject a port over IPv6 if the
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exit policy rejects that port on more than an IPv6 /16 of
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addresses. This bug was made worse by 17027 in 0.2.8.1-alpha,
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which rejected a relay's own IPv6 address by default. Fixes bug
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21357; bugfix on commit 004f3f4e53 in 0.2.4.7-alpha.
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o Major bugfixes (parsing, also in 0.3.0.4-rc):
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- Fix an integer underflow bug when comparing malformed Tor versions.
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This bug is harmless, except when Tor has been built with
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--enable-expensive-hardening, which would turn it into a crash;
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or on Tor 0.2.9.1-alpha through Tor 0.2.9.8, which were built with
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-ftrapv by default.
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Part of TROVE-2017-001. Fixes bug 21278; bugfix on
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0.0.8pre1. Found by OSS-Fuzz.
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o Minor features (directory authority, also in 0.3.0.4-rc):
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- Directory authorities now reject descriptors that claim to be
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malformed versions of Tor. Helps prevent exploitation of bug 21278.
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o Minor features (portability, compilation, backport from 0.3.0.3-alpha):
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- Autoconf now checks to determine if OpenSSL structures are opaque,
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instead of explicitly checking for OpenSSL version numbers. Part
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of ticket 21359.
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- Support building with recent LibreSSL code that uses opaque
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structures. Closes ticket 21359.
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o Minor features (geoip):
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- Update geoip and geoip6 to the February 8 2017 Maxmind GeoLite2
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Country database.
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o Minor bugfixes (code correctness, also in 0.3.0.4-rc):
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- Repair a couple of (unreachable or harmless) cases of the risky
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comparison-by-subtraction pattern that caused bug 21278.
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o Minor bugfixes (tor-resolve, backport from 0.3.0.3-alpha):
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- The tor-resolve command line tool now rejects hostnames over 255
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characters in length. Previously, it would silently truncate them,
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which could lead to bugs. Fixes bug 21280; bugfix on 0.0.9pre5.
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Patch by "junglefowl".
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o Minor bugfixes (voting consistency, also in 0.3.0.4-rc):
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- Reject version numbers with components that exceed INT32_MAX.
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Otherwise 32-bit and 64-bit platforms would behave inconsistently.
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Fixes bug 21450; bugfix on 0.0.8pre1.
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Changes in version 0.2.9.9 - 2017-01-23
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Tor 0.2.9.9 fixes a denial-of-service bug where an attacker could
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cause relays and clients to crash, even if they were not built with
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@ -1,8 +0,0 @@
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o Minor features (portability, compilationc)
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- Support building with recent LibreSSL code that uses opaque
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structures. Closes ticket 21359.
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- Autoconf now check to determine if OpenSSL
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structures are opaque, instead of explicitly checking for
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OpenSSL version numbers.
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Part of ticket 21359.
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@ -1,6 +0,0 @@
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o Major bugfixes (directory authority):
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- During voting, when marking a node as a probable sybil, do not
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clear its BadExit flag: sybils can still be bad in other ways
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too. (We still clear the other flags.) Fixes bug 21108; bugfix
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on 0.2.0.13-alpha.
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@ -1,3 +0,0 @@
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o Minor bugfixes (code correctness):
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- Repair a couple of (unreachable or harmless) cases of the risky
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comparison-by-subtraction pattern that caused bug 21278.
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@ -1,4 +0,0 @@
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o Minor features (directory authority):
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- Directory authorities now reject descriptors that claim to be
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malformed versions of Tor. Helps prevent exploitation of bug 21278.
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@ -1,5 +0,0 @@
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o Minor bugfixes (tor-resolve):
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- The tor-resolve command line tool now rejects hostnames over 255
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characters in length. Previously, it would silently truncate
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them, which could lead to bugs. Fixes bug 21280; bugfix on 0.0.9pre5.
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Patch by "junglefowl".
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@ -1,7 +0,0 @@
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o Major bugfixes (IPv6 Exits):
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- Stop rejecting all IPv6 traffic on Exits whose exit policy rejects IPv6
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addresses. Instead, only reject a port over IPv6 if the exit policy
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rejects that port on more than an IPv6 /16 of addresses. This bug was
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made worse by 17027 in 0.2.8.1-alpha, which rejects a relay's own IPv6
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address by default.
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Fixes bug 21357; bugfix on commit 004f3f4e53 in 0.2.4.7-alpha.
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@ -1,4 +0,0 @@
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o Minor bugfixes (voting consistency):
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- Reject version numbers with components that exceed INT32_MAX.
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Otherwise 32-bit and 64-bit platforms would behave inconsistently.
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Fixes bug 21450; bugfix on 0.0.8pre1.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the February 8 2017 Maxmind GeoLite2
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Country database.
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@ -1,8 +0,0 @@
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o Major bugfixes (parsing):
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- Fix an integer underflow bug when comparing malformed Tor versions.
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This bug is harmless, except when Tor has been built with
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--enable-expensive-hardening, which would turn it into a crash;
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or on Tor 0.2.9.1-alpha through Tor 0.2.9.8, which were built with
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-ftrapv by default.
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Part of TROVE-2017-001. Fixes bug 21278; bugfix on
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0.0.8pre1. Found by OSS-Fuzz.
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