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Oracle July 2021 Critical Patch Update Addresses 231 CVEs

Oracle addresses 231 CVEs in its third quarterly update of 2021 with 342 patches, including 49 critical updates.

Background

On July 20, Oracle released its Critical Patch Update (CPU) for July 2021, the third quarterly update of the year. This CPU update contains fixes for 231 CVEs in 342 security updates across 26 Oracle product families. Out of the 342 security updates published this quarter, 13% of patches were assigned a critical severity. Medium severity patches accounted for the bulk of security patches at 45.5%, followed by high severity patches at 36.8%.

This quarter’s update includes fixes for 49 critical issues across 30 CVEs.

Severity Issued Patched CVEs
Critical 49 30
High 158 85
Medium 123 105
Low 12 11
Total 342 231

Analysis

This quarter, the Oracle Fusion Middleware product family contained the highest number of patches at 48, which accounts for 14% of the total patches. It is unsurprising, considering that Oracle Fusion Middleware is one of the most consistently patched pieces of software that Oracle produces. So far in 2021, Fusion Middleware has received 153 patches.

Of the 48 Fusion Middleware patches this quarter, 35 are remotely exploitable without authentication.

A full breakdown of the patches for this quarter can be seen in the following table:

Oracle Product Family Number of Patches Remote Exploit without Auth
Oracle Fusion Middleware 48 35
Oracle MySQL 41 10
Oracle Communications Applications 33 22
Oracle Communications 26 23
Oracle Retail Applications 23 15
Oracle Financial Services Applications 22 17
Oracle E-Business Suite 17 3
Oracle Database Server 16 1
Oracle PeopleSoft 14 8
Oracle Commerce 11 8
Oracle Systems 11 9
Oracle Construction and Engineering 10 5
Oracle Essbase 9 8
Oracle JD Edwards 9 8
Oracle Enterprise Manager 8 8
Oracle Food and Beverage Applications 6 0
Oracle Hyperion 6 4
Oracle Java SE 6 5
Oracle Siebel CRM 6 4
Oracle Virtualization 6 1
Oracle Supply Chain 5 5
Oracle Insurance Applications 4 3
Oracle Big Data Graph 2 2
Oracle Hospitality Applications 1 0
Oracle Policy Automation 1 1
Oracle Support Tools 1 1

Oracle Patches CVE-2019-2729 in Hyperion Infrastructure Technology

As part of the July 2021 CPU, Oracle released a patch for CVE-2019-2729, a critical deserialization vulnerability in Oracle WebLogic Server that was originally patched in an out-of-band update in June 2019. The vulnerability in Hyperion Infrastructure Technology exists within the Installation and Configuration component. Organizations that use the Hyperion Infrastructure Technology should apply the available patch as soon as possible.

Additional WebLogic Server vulnerabilities patched this quarter

Because WebLogic has previously been a favorite initial access vector for attackers, including ransomware groups like REvil (also known as Sodinokbi), we parse Oracle’s CPUs with a focus on WebLogic vulnerabilities. This quarter, there were six vulnerabilities patched within Oracle WebLogic Server (not including those in third party libraries).

CVE Component CVSSv3 Remotely Exploitable without Auth
CVE-2021-2382 Security 9.8 Yes
CVE-2021-2394 Core 9.8 Yes
CVE-2021-2397 Core 9.8 Yes
CVE-2021-2376 Web Services 7.5 Yes
CVE-2021-2378 Core 7.5 Yes
CVE-2021-2403 Core 5.3 Yes

Three of the six vulnerabilities in WebLogic Server were assigned a CVSSv3 score of 9.8 out of 10, which classifies them as critical. According to its advisory, Oracle says that CVE-2021-2397 also addresses CVE-2020-14756, which was another critical WebLogic Server vulnerability that was originally patched as part of the January 2021 Critical Patch Update.

Proof of concept

At the time this blog post was published, there were no proof-of-concept (PoC) exploits for any of the new WebLogic server vulnerabilities, though we anticipate that researchers may share details in the future. However, there are six PoCs for CVE-2019-2729.

Solution

Customers are advised to apply all relevant patches in this quarter’s CPU. Please refer to the July 2021 advisory for full details.

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