drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in OpenSSL
Name: |
Zwei Probleme in OpenSSL |
|
ID: |
USN-4738-1 |
|
Distribution: |
Ubuntu |
|
Plattformen: |
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10 |
|
Datum: |
Do, 18. Februar 2021, 23:57 |
|
Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23840
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) --===============4747635433445718302== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="3sExFTnNOV2ji9wTYtNRdKnhro8iAZ2rT"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --3sExFTnNOV2ji9wTYtNRdKnhro8iAZ2rT Content-Type: multipart/mixed; boundary="yiJscbILJH2W1KagPf1PLbUJtN3yzaSih"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> Message-ID: <9b7405da-4aec-9255-472a-64a38c1719a7@canonical.com> Subject: [USN-4738-1] OpenSSL vulnerabilities
--yiJscbILJH2W1KagPf1PLbUJtN3yzaSih Content-Type: text/plain; charset=utf-8 Content-Language: en-C Content-Transfer-Encoding: quoted-printable
========================================================================== Ubuntu Security Notice USN-4738-1 February 18, 2021
openssl, openssl1.0 vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in OpenSSL.
Software Description: - openssl: Secure Socket Layer (SSL) cryptographic library and tools - openssl1.0: Secure Socket Layer (SSL) cryptographic library and tools
Details:
Paul Kehrer discovered that OpenSSL incorrectly handled certain input lengths in EVP functions. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2021-23840)
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 20.10: libssl1.1 1.1.1f-1ubuntu4.2
Ubuntu 20.04 LTS: libssl1.1 1.1.1f-1ubuntu2.2
Ubuntu 18.04 LTS: libssl1.0.0 1.0.2n-1ubuntu5.6 libssl1.1 1.1.1-1ubuntu2.1~18.04.8
Ubuntu 16.04 LTS: libssl1.0.0 1.0.2g-1ubuntu4.19
After a standard system update you need to reboot your computer to make all the necessary changes.
References: https://usn.ubuntu.com/4738-1 CVE-2021-23840, CVE-2021-23841
Package Information: https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubuntu4.2 https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubuntu2.2 https://launchpad.net/ubuntu/+source/openssl/1.1.1-1ubuntu2.1~18.04.8 https://launchpad.net/ubuntu/+source/openssl1.0/1.0.2n-1ubuntu5.6 https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu4.19
--yiJscbILJH2W1KagPf1PLbUJtN3yzaSih--
--3sExFTnNOV2ji9wTYtNRdKnhro8iAZ2rT Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature"
-----BEGIN PGP SIGNATURE-----
iQIzBAEBCgAdFiEEUMSg3c8x5FLOsZtRZWnYVadEvpMFAmAubmEACgkQZWnYVadE vpMHaBAApT2mFGaRiScxm9L5Ivif0C6mpJFScb1IY3zur8wiFvLHvAfCi0Y9DtrI vPthZ84FQoIk5t4KfSxfA0vpFXZ8sOCKxUeJ6RCjReFDCvRvKEmnA07775i2umJq HXHMQ2c2PIoQkPe8YsQx9dUEqhUBT/d1G467o3eQMY/WJ7NhsB2xknBKlz4BdhRu sSezO4JQkc4NUytooHw+hotR2J9+kdVf+jpGRkTB9jfm4QlJMkY0SyY4eE55JWGH i4aXqei00SWDOXIS20VrxAfP6NZHH8PUnY4pTfu/YuxHT/MIJ9bnK9KZPa0mYX7I WGmiLmSv45sCIz0MwskX0nPRlUGAKoWSTmwnktFlMBInb7XlaVHqju+k8mik2g7C UTtCuD+OG/QKVlM8nPXNsYCL7axdXiUhH/I5RMYxESzRFjhoqLVKYGT24gUp4d6G oVILLGDmJi0FTnrP2NTBcfNF+X/ZZpgl54B+jp8OWiCKXMdINDcmnZht6pYHAnb/ 4Uv9uuJB9zkx0tSpLzA+l3QBzPyghPLtr5x2PW01Sf272rPQE+/sWR4zUTOA3KiF xejXwS/j2iC2ZH9GqkPkQUngLbp4GSztfvtkj923eJMi3wJWX2nZ8lPBZYtAMQSN LOcRogneAIV5Acw34aXM5EbAkyfa4NPWPYZE5uw/ETnqNJNrHSE= =fSh/ -----END PGP SIGNATURE-----
--3sExFTnNOV2ji9wTYtNRdKnhro8iAZ2rT--
--===============4747635433445718302== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline
LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5 LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj dXJpdHktYW5ub3VuY2UK
--===============4747635433445718302==--
|
|
|
|