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openSUSE Leap 15.0: openSUSE-SU-2018:2117-1 Moderate: DoS in OpenSSL

opensuse
Calendar Grey July 28, 2018
Dist Opensuse Esm H88
A recent update fixes a major openssl-1_1 vulnerability that could lead to Denial of Service attacks. For patch details and installation guidance, check the official documentation
An update that solves one vulnerability and has two fixes is now available.

Description

This update for openssl-1_1 fixes the following issues:

- CVE-2018-0732: During key agreement in a TLS handshake using a DH(E)

based ciphersuite a malicious server could have sent a very large prime

value to the client. This caused the client to spend an unreasonably

long period of time generating a key for this prime resulting in a hang

until the client has finished. This could be exploited in a Denial Of

Service attack (bsc#1097158).

- Blinding enhancements for ECDSA and DSA (bsc#1097624, bsc#1098592)

This update was imported from the SUSE:SLE-15:Update update project.

Topics%20covered

Topics Covered

security advisory moderate DoS openssl openSUSE

Patch

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods

like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 15.0:

zypper in -t patch openSUSE-2018-777=1

Package List

- openSUSE Leap 15.0 (i586 x86_64):

libopenssl-1_1-devel-1.1.0h-lp150.3.3.1

libopenssl1_1-1.1.0h-lp150.3.3.1

libopenssl1_1-debuginfo-1.1.0h-lp150.3.3.1

libopenssl1_1-hmac-1.1.0h-lp150.3.3.1

openssl-1_1-1.1.0h-lp150.3.3.1

openssl-1_1-debuginfo-1.1.0h-lp150.3.3.1

openssl-1_1-debugsource-1.1.0h-lp150.3.3.1

- openSUSE Leap 15.0 (x86_64):

libopenssl-1_1-devel-32bit-1.1.0h-lp150.3.3.1

libopenssl1_1-32bit-1.1.0h-lp150.3.3.1

libopenssl1_1-32bit-debuginfo-1.1.0h-lp150.3.3.1

libopenssl1_1-hmac-32bit-1.1.0h-lp150.3.3.1

- openSUSE Leap 15.0 (noarch):

openssl-1_1-doc-1.1.0h-lp150.3.3.1

References

https://www.suse.com/security/cve/CVE-2018-0732.html

https://bugzilla.suse.com/1097158

https://bugzilla.suse.com/1097624

https://bugzilla.suse.com/1098592

--

Announcement ID: openSUSE-SU-2018:2117-1
Rating: moderate
Affected Products: openSUSE Leap 15.0 le.

Topics%20covered

Topics Covered

security advisory moderate DoS openssl openSUSE

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