[tor-packagers] New Tor *security* releases: 0.3.5.16, 0.4.5.10, 0.4.6.7

David Goulet dgoulet at torproject.org
Mon Aug 16 20:26:27 UTC 2021


Greetings,

There are new security releases today.

You can find these releases in the usual place at https://dist.torproject.org.
Make sure (as usual) to check the signatures: my key is available at
key.cgi?fingerprint=2133BC600AB133E1D826D173FE43009C4607B1FB

Security issue is as follow:

  o Major bugfixes (cryptography, security):
    - Resolve an assertion failure caused by a behavior mismatch between
      our batch-signature verification code and our single-signature
      verification code. This assertion failure could be triggered
      remotely, leading to a denial of service attack. We fix this issue
      by disabling batch verification. Fixes bug 40078; bugfix on
      0.2.6.1-alpha. This issue is also tracked as TROVE-2021-007 and
      CVE-2021-38385. Found by Henry de Valence.

For complete ChangeLog for each release, see:

https://gitweb.torproject.org/tor.git/tree/ChangeLog?h=tor-0.3.5.16
https://gitweb.torproject.org/tor.git/tree/ChangeLog?h=tor-0.4.5.10
https://gitweb.torproject.org/tor.git/tree/ChangeLog?h=tor-0.4.6.7

For the ReleaseNotes for the 0.4.6.x series as a whole, see:

https://gitweb.torproject.org/tor.git/tree/ReleaseNotes?h=tor-0.4.6.7

Cheers!
David

-- 
lMYBijO9FpmEGKJmZQ6s/yKCHF60TEF+oFM4trwRvVk=
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