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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✕Has a public PoC✕
Overview 7 matches · 0 in Waratek scope · 0 protected · 2 exploited · 1 CISA KEV · 6 EPSS ≥ 0.5
7matches 0in Waratek scope0.0% 0protected0.0% 2exploited28.6% 1CISA KEV14.3% 6EPSS ≥ 0.585.7%
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0 0.0% Mitigation candidate 0 0.0% No exploit published 0 0.0% Outside Waratek scope 0 0.0% Not applicable 7 100.0% Withdrawn CVE 0 0.0%
Critical 2 28.6% High 4 57.1% Medium 1 14.3% 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 7 100.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 2 28.6% Working exploit published 1 14.3% Proof of concept only 4 57.1% Forecast only 0 0.0% No public exploit 0 0.0%
split by peak 2 / quarter
Not applicable: 7 Medium: 1High: 4Critical: 2 not blocked: 7 Proof of concept only: 4Working exploit published: 1Exploited: 2
Q4 191 Not applicable1 Critical1 not blocked1 Exploited1 Q1 200 Q2 200 Q3 200 Q4 200 Q1 210 Q2 211 Not applicable1 High1 not blocked1 Working exploit published1 Q3 210 Q4 210 Q1 220 Q2 220 Q3 221 Not applicable1 High1 not blocked1 Proof of concept only1 Q4 222 Not applicable2 High2 not blocked2 Proof of concept only2 Q1 232 Not applicable2 Critical1 Medium1 not blocked2 Exploited1 Proof of concept only1
Q1 20Q3 20Q1 21Q3 21Q1 22Q3 22Q1 23
7 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-2023-25136 Medium 2023-02-03 Not applicable Proof of concept only OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible."
CVE-2022-3786 High 2022-11-01 Not applicable Proof of concept only A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.' character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.
CVE-2022-3602 High 2022-11-01 Not applicable Proof of concept only A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).
CVE-2022-35737 High 2022-08-03 Not applicable Proof of concept only SQLite 1.0.12 through 3.39.x before 3.39.2 sometimes allows an array-bounds overflow if billions of bytes are used in a string argument to a C API.
CVE-2021-23017 High 2021-06-01 Not applicable Working exploit published A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.
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.)