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Oracle Critical Patch Update April 2023

Released April 2023 · Oracle's advisory ↗ · ← Critical Patch Update, January 2023 · Critical Patch Update, July 2023 →

328 CVEs in this release, one square each

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Share this chart Oracle Critical Patch Update April 2023, one square per CVE: 175 Java CVEs, 47 protected by Waratek, 12 exploited, 153 other CVEs in this release.

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47Protected by Waratek9Mitigation candidate119No exploit published35Outside Waratek scope118Not applicable 12Exploited, marked by the ring

No exploit published. For 56 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✕
Overview 4 matches · 0 in Waratek scope · 0 protected · 1 CISA KEV · 2 public PoC · 2 EPSS ≥ 0.5
4matches 0in Waratek scope0.0% 0protected0.0% 1CISA KEV25.0% 2public PoC50.0% 2EPSS ≥ 0.550.0%
Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 0 0.0% Outside Waratek scope 0 0.0% Not applicable 4 100.0% Withdrawn CVE 0 0.0%
Critical 2 50.0% High 2 50.0% Medium 0 0.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 4 100.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 4 100.0% Working exploit published 0 0.0% Proof of concept only 0 0.0% Forecast only 0 0.0% No public exploit 0 0.0%
split by peak 2 / quarter
Not applicable: 4 High: 2Critical: 2 not blocked: 4 Exploited: 4
Q4 191 Not applicable1 Critical1 not blocked1 Exploited1 Q1 200 Q2 200 Q3 200 Q4 200 Q1 210 Q2 210 Q3 210 Q4 210 Q1 220 Q2 220 Q3 220 Q4 222 Not applicable2 High2 not blocked2 Exploited2 Q1 231 Not applicable1 Critical1 not blocked1 Exploited1
Q1 20Q3 20Q1 21Q3 21Q1 22Q3 22Q1 23
4 matches Sign in to download these CVEs as CSV or JSON, or to follow them in a feed.
CVE Severity Published▾ Status Exploitation Description
CVE-2023-25690 Critical 2023-03-07 Not applicable Exploited Some mod_proxy configurations on Apache HTTP Server versions 2.4.0 through 2.4.55 allow a HTTP Request Smuggling attack. Configurations are affected when mod_proxy is enabled along with some form of RewriteRule or ProxyPassMatch in which a non-specific pattern matches some portion of the user-supplied request-target (URL) data and is then re-inserted into the proxied request-target using variable substitution. For example, something like: RewriteEngine on RewriteRule "^/here/(.*)" "http://example.com:8080/elsewhere?$1"; [P] ProxyPassReverse /here/ http://example.com:8080/ Request splitting/smuggling could result in bypass of access controls in the proxy server, proxying unintended URLs to existing origin servers, and cache poisoning. Users are recommended to update to at least version 2.4.56 of Apache HTTP Server.
CVE-2022-40304 High 2022-11-23 Not applicable Exploited An issue was discovered in libxml2 before 2.10.3. Certain invalid XML entity definitions can corrupt a hash table key, potentially leading to subsequent logic errors. In one case, a double-free can be provoked.
CVE-2022-40303 High 2022-11-23 Not applicable Exploited An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.
CVE-2019-18935 Critical 2019-12-11 Not applicable Exploited Progress Telerik UI for ASP.NET AJAX through 2019.3.1023 contains a .NET deserialization vulnerability in the RadAsyncUpload function. This is exploitable when the encryption keys are known due to the presence of CVE-2017-11317 or CVE-2017-11357, or other means. Exploitation can result in remote code execution. (As of 2020.1.114, a default setting prevents the exploit. In 2019.3.1023, but not earlier versions, a non-default setting can prevent exploitation.)