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Bug 543156 (CVE-2015-2318, CVE-2015-2319, CVE-2015-2320) - <dev-lang/mono-4.4.1.0: TLS vulnerabilities
Summary: <dev-lang/mono-4.4.1.0: TLS vulnerabilities
Status: RESOLVED FIXED
Alias: CVE-2015-2318, CVE-2015-2319, CVE-2015-2320
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
URL: http://www.openwall.com/lists/oss-sec...
Whiteboard: B3 [noglsa cve]
Keywords:
Depends on:
Blocks:
 
Reported: 2015-03-13 14:21 UTC by Agostino Sarubbo
Modified: 2018-04-03 19:22 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Agostino Sarubbo gentoo-dev 2015-03-13 14:21:07 UTC
From ${URL} :

A TLS impersonation attack was discovered in Mono's TLS stack by
researchers at Inria. During checks on our TLS stack, we have
discovered two further issues which we have fixed - SSLv2 support, and
vulnerability to FREAK. These vulnerabilities affect basically every
Mono version ever released.

All three issues should be addressed in the following patches:

https://github.com/mono/mono/commit/1509226c41d74194c146deb173e752b8d3cdeec4
https://github.com/mono/mono/commit/9c38772f094168d8bfd5bc73bf8925cd04faad10
https://github.com/mono/mono/commit/b371da6b2d68b4cdd0f21d6342af6c42794f998b

These patches should apply to all Mono versions from 3.4.0 or so
onwards. The EXPORT cipher removal patch requires slight modification
in order to apply to Mono releases prior to 3.x -
https://gist.github.com/directhex/728af6f96d1b8c976659 should work for
these users. The Impersonation patch requires slight modification to
apply to Mono releases prior to 3.4 -
https://gist.github.com/directhex/f8c6e67f551d8a608154 should work for
these users.

Alternatively, this is fixed in Mono 3.12.1 and higher:
http://download.mono-project.com/sources/mono/mono-3.12.1.tar.bz2


@maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.
Comment 1 Pacho Ramos gentoo-dev 2016-09-21 11:01:53 UTC
mono-4 is being stabilized in other security bug :/
Comment 2 Thomas Deutschmann gentoo-dev Security 2017-06-03 18:36:11 UTC
CVE-2015-2318 is https://github.com/mono/mono/commit/1509226c41d74194c146deb173e752b8d3cdeec4

CVE-2015-2320 is https://github.com/mono/mono/commit/9c38772f094168d8bfd5bc73bf8925cd04faad10

CVE-2015-2320 is https://github.com/mono/mono/commit/b371da6b2d68b4cdd0f21d6342af6c42794f998b


This is fixed at least for 4.4.x but our 2.10.x is still vulnerable.


@ Maintainer(s): Please tell us if you are going to patch 2.10.x or want to remove/mask instead.
Comment 3 Aaron Bauman Gentoo Infrastructure gentoo-dev Security 2018-04-03 19:22:38 UTC
2.x branch gone.  Tree is clean.

GLSA Vote: No.