CVE-2022-21716: Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer's SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as `nc -rv localhost 22 < /dev/zero`. A patch is available in version 22.2.0. There are currently no known workarounds. Fixed in 22.2.0.
GLSA request filed
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/data/glsa.git/commit/?id=2bcf5e2e8d41a687f63bb2d3acc767b943e61b24 commit 2bcf5e2e8d41a687f63bb2d3acc767b943e61b24 Author: GLSAMaker <glsamaker@gentoo.org> AuthorDate: 2023-01-11 05:16:16 +0000 Commit: John Helmert III <ajak@gentoo.org> CommitDate: 2023-01-11 05:22:04 +0000 [ GLSA 202301-02 ] Twisted: Multiple Vulnerabilities Bug: https://bugs.gentoo.org/832875 Bug: https://bugs.gentoo.org/834542 Bug: https://bugs.gentoo.org/878499 Signed-off-by: GLSAMaker <glsamaker@gentoo.org> Signed-off-by: John Helmert III <ajak@gentoo.org> glsa-202301-02.xml | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+)
GLSA released, all done!
