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Oracle Critical Patch Update April 2021

Released April 2021 · Oracle's advisory ↗ · ← Critical Patch Update, January 2021 · Critical Patch Update, July 2021 →

258 CVEs in this release, one square each

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Share this chart Oracle Critical Patch Update April 2021, one square per CVE: 137 Java CVEs, 19 protected by Waratek, 7 exploited, 121 other CVEs in this release.

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19Protected by Waratek3Mitigation candidate115No exploit published67Outside Waratek scope54Not applicable 7Exploited, marked by the ring

No exploit published. For 97 of them, Oracle's security advisory is the source of public detail.

Protected by Waratek. Waratek RASP can block exploitation of these on systems that have not applied the patch yet.

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Including CVEs outside Waratek scope✕Has a public PoC✕
Overview 5 matches · 1 in Waratek scope · 1 protected · 0 exploited · 0 CISA KEV
5matches 1in Waratek scope20.0% 1protected20.0% 0exploited0.0% 0CISA KEV0.0%
Protected by Waratek 1 20.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 0 0.0% Outside Waratek scope 3 60.0% Not applicable 1 20.0% Withdrawn CVE 0 0.0%
Critical 0 0.0% High 5 100.0% Medium 0 0.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 1 20.0% partly blocked 0 0.0% not blocked 4 80.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 0 0.0% Working exploit published 2 40.0% Proof of concept only 3 60.0% Forecast only 0 0.0% No public exploit 0 0.0%
split by peak 2 / quarter
Not applicable: 1Outside Waratek scope: 3Protected by Waratek: 1 High: 5 not blocked: 4blocked by ARMR today: 1 Proof of concept only: 3Working exploit published: 2
Q2 191 Outside Waratek scope1 High1 not blocked1 Working exploit published1 Q3 190 Q4 190 Q1 201 Outside Waratek scope1 High1 not blocked1 Proof of concept only1 Q2 201 Outside Waratek scope1 High1 not blocked1 Proof of concept only1 Q3 200 Q4 202 Protected by Waratek1 Not applicable1 High2 blocked by ARMR today1 not blocked1 Working exploit published1 Proof of concept only1
Q2 19Q3 19Q4 19Q1 20Q2 20Q3 20Q4 20
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CVE Severity Published▾ Status Exploitation Description
CVE-2020-8277 High 2020-11-19 Not applicable Proof of concept only A Node.js application that allows an attacker to trigger a DNS request for a host of their choice could trigger a Denial of Service in versions < 15.2.1, < 14.15.1, and < 12.19.1 by getting the application to resolve a DNS record with a larger number of responses. This is fixed in 15.2.1, 14.15.1, and 12.19.1.
CVE-2020-26217 High 2020-11-16 Protected by Waratek Working exploit published XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.
CVE-2020-1967 High 2020-04-21 Outside Waratek scope Proof of concept only Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).
CVE-2020-5398 High 2020-01-17 Outside Waratek scope Proof of concept only In Spring Framework, versions 5.2.x prior to 5.2.3, versions 5.1.x prior to 5.1.13, and versions 5.0.x prior to 5.0.16, an application is vulnerable to a reflected file download (RFD) attack when it sets a "Content-Disposition" header in the response where the filename attribute is derived from user supplied input.
CVE-2019-0227 High 2019-05-01 Outside Waratek scope Working exploit published A Server Side Request Forgery (SSRF) vulnerability affected the Apache Axis 1.4 distribution that was last released in 2006. Security and bug commits commits continue in the projects Axis 1.x Subversion repository, legacy users are encouraged to build from source. The successor to Axis 1.x is Axis2, the latest version is 1.7.9 and is not vulnerable to this issue.