[USN-3813-1] pyOpenSSL vulnerabilities


This is an OpenPGP/MIME signed message (RFC 4880 and 3156)

protocol=”application/pgp-signature”;
boundary=”8Qxb5fmPfqhb1Is1ot9J9msM01ece9zNB”

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
–8Qxb5fmPfqhb1Is1ot9J9msM01ece9zNB

protected-headers=”v1″
From: Marc Deslauriers
Reply-To: Ubuntu Security
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID:
Subject: [USN-3813-1] pyOpenSSL vulnerabilities

–ClLpH2n7phY4yNEvBCKI3QvDPqu6P4DDa

Content-Language: en-CA
Content-Transfer-Encoding: quoted-printable

=
=

Ubuntu Security Notice USN-3813-1
November 08, 2018

pyopenssl vulnerabilities
=
=

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in pyOpenSSL.

Software Description:
– pyopenssl: Python wrapper around the OpenSSL library

Details:

It was discovered that pyOpenSSL incorrectly handled memory when handling=

X509 objects. A remote attacker could use this issue to cause pyOpenSSL t=
o
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2018-1000807)

It was discovered that pyOpenSSL incorrectly handled memory when performi=
ng
operations on a PKCS #12 store. A remote attacker could possibly use this=

issue to cause pyOpenSSL to consume resources, resulting in a denial of
service. (CVE-2018-1000808)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS:
python-openssl 0.15.1-2ubuntu0.2
python3-openssl 0.15.1-2ubuntu0.2

In general, a standard system update will make all the necessary changes.=

References:
https://usn.ubuntu.com/usn/usn-3813-1
CVE-2018-1000807, CVE-2018-1000808

Package Information:
https://launchpad.net/ubuntu/+source/pyopenssl/0.15.1-2ubuntu0.2

–ClLpH2n7phY4yNEvBCKI3QvDPqu6P4DDa–

–8Qxb5fmPfqhb1Is1ot9J9msM01ece9zNB

Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename=”signature.asc”

—–BEGIN PGP SIGNATURE—–
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=AykU
—–END PGP SIGNATURE—–

–8Qxb5fmPfqhb1Is1ot9J9msM01ece9zNB–

MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline

LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5
LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl
IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj
dXJpdHktYW5ub3VuY2UK