Login
Newsletter
Werbung

Sicherheit: Zwei Probleme in OpenSSL
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in OpenSSL
ID: USN-4745-1
Distribution: Ubuntu
Plattformen: Ubuntu 12.04 ESM, Ubuntu 14.04 ESM
Datum: Di, 23. Februar 2021, 22:13
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1971
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23841
Applikationen: OpenSSL

Originalnachricht

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============9163546930291368169==
Content-Type: multipart/signed; micalg=pgp-sha256;
protocol="application/pgp-signature";
boundary="jGEcg5Lh4e1t8hIsvY3GRkaJenMvoFGH1"

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--jGEcg5Lh4e1t8hIsvY3GRkaJenMvoFGH1
Content-Type: multipart/mixed;
boundary="Zz7pCFtK4S7hUl7AVpt4vKuGBOjh4y5dB"

--Zz7pCFtK4S7hUl7AVpt4vKuGBOjh4y5dB
Content-Type: text/plain; charset=utf-
Content-Transfer-Encoding: quoted-printable
Content-Language: en-US

==========================================================================
Ubuntu Security Notice USN-4745-1
February 23, 2021

openssl vulnerabilities
==========================================================================

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in OpenSSL.

Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools

Details:

David Benjamin discovered that OpenSSL incorrectly handled comparing
certificates containing a EDIPartyName name type. A remote attacker could
possibly use this issue to cause OpenSSL to crash, resulting in a denial of
service. (CVE-2020-1971)

Tavis Ormandy discovered that OpenSSL incorrectly handled parsing issuer
fields. A remote attacker could possibly use this issue to cause OpenSSL to
crash, resulting in a denial of service. (CVE-2021-23841)

Update instructions:

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

Ubuntu 14.04 ESM:
libssl1.0.0 1.0.1f-1ubuntu2.27+esm2

Ubuntu 12.04 ESM:
libssl1.0.0 1.0.1-4ubuntu5.45

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
https://usn.ubuntu.com/4745-1
CVE-2020-1971, CVE-2021-23841



--Zz7pCFtK4S7hUl7AVpt4vKuGBOjh4y5dB--

--jGEcg5Lh4e1t8hIsvY3GRkaJenMvoFGH1
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----

iQEzBAEBCAAdFiEElnO/d49FoUPK9fwytGdj0GOh2+wFAmA1awIACgkQtGdj0GOh
2+z3FAf+MBckdO7ssc5tED/5iyJhemYPG4UeqEBaIlen7Ye5PYMr3XAAAqbEWHpS
UeUJwLYt0Zy7Q2d6PdvgUrfJeBx0d/ZIanWvDyMgDcmFd72UNWFs6ya2q3GaNAFu
ORMwaBZf/hrNKU9VUFGtTD1C8gb1JnmzgxgPeYZ0ReMiu5Y/4ZsmNwpcKlL2wTRM
sBu9YWGGypJZqTaz1tMepPBg0ImDmGqpobZlGnYbaqHKZvQw5vO0SXkEERiiBBCt
mgtRlkaUN4TW26be3p6zluvGwIxOCPZ1LnJyBYV9n/VKv0izdEtBTf0CPy1WB0UE
BxSoKBAuT0/13rBW18VO34BquOnlEw==
=WfBQ
-----END PGP SIGNATURE-----

--jGEcg5Lh4e1t8hIsvY3GRkaJenMvoFGH1--


--===============9163546930291368169==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline

LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5
LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl
IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj
dXJpdHktYW5ub3VuY2UK

--===============9163546930291368169==--
Pro-Linux
Pro-Linux @Facebook
Neue Nachrichten
Werbung