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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 7 matches · 2 in Waratek scope · 1 protected · 3 exploited · 1 CISA KEV · 5 EPSS ≥ 0.5
7matches 2in Waratek scope28.6% 1protected14.3% 3exploited42.9% 1CISA KEV14.3% 5EPSS ≥ 0.571.4%
Protected by Waratek 1 14.3% Rule in development 0 0.0% Mitigation candidate 1 14.3% No exploit published 0 0.0% Outside Waratek scope 5 71.4% Not applicable 0 0.0% Withdrawn CVE 0 0.0%
Critical 0 0.0% High 0 0.0% Medium 7 100.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 1 14.3% partly blocked 0 0.0% not blocked 6 85.7% not established 0 0.0% unrecorded 0 0.0%
Exploited 3 42.9% Working exploit published 2 28.6% Proof of concept only 2 28.6% Forecast only 0 0.0% No public exploit 0 0.0%
split by peak 2 / quarter
Outside Waratek scope: 5Mitigation candidate: 1Protected by Waratek: 1 Medium: 7 not blocked: 6blocked by ARMR today: 1 Proof of concept only: 2Working exploit published: 2Exploited: 3
Q1 171 Protected by Waratek1 Medium1 blocked by ARMR today1 Working exploit published1 Q2 170 Q3 170 Q4 170 Q1 180 Q2 180 Q3 180 Q4 180 Q1 190 Q2 192 Mitigation candidate1 Outside Waratek scope1 Medium2 not blocked2 Exploited1 Working exploit published1 Q3 190 Q4 190 Q1 200 Q2 202 Outside Waratek scope2 Medium2 not blocked2 Exploited2 Q3 200 Q4 201 Outside Waratek scope1 Medium1 not blocked1 Proof of concept only1 Q1 211 Outside Waratek scope1 Medium1 not blocked1 Proof of concept only1
Q1 17Q3 17Q1 18Q3 18Q1 19Q3 19Q1 20Q3 20Q1 21
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-2021-3449 Medium 2021-03-25 Outside Waratek scope Proof of concept only An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).
CVE-2020-1971 Medium 2020-12-08 Outside Waratek scope Proof of concept only The X.509 GeneralName type is a generic type for representing different types of names. One of those name types is known as EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME to see if they are equal or not. This function behaves incorrectly when both GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash may occur leading to a possible denial of service attack. OpenSSL itself uses the GENERAL_NAME_cmp function for two purposes: 1) Comparing CRL distribution point names between an available CRL and a CRL distribution point embedded in an X509 certificate 2) When verifying that a timestamp response token signer matches the timestamp authority name (exposed via the API functions TS_RESP_verify_response and TS_RESP_verify_token) If an attacker can control both items being compared then that attacker could trigger a crash. For example if the attacker can trick a client or server into checking a malicious certificate against a malicious CRL then this may occur. Note that some applications automatically download CRLs based on a URL embedded in a certificate. This checking happens prior to the signatures on the certificate and CRL being verified. OpenSSL's s_server, s_client and verify tools have support for the "-crl_download" option which implements automatic CRL downloading and this attack has been demonstrated to work against those tools. Note that an unrelated bug means that affected versions of OpenSSL cannot parse or construct correct encodings of EDIPARTYNAME. However it is possible to construct a malformed EDIPARTYNAME that OpenSSL's parser will accept and hence trigger this attack. All OpenSSL 1.1.1 and 1.0.2 versions are affected by this issue. Other OpenSSL releases are out of support and have not been checked. Fixed in OpenSSL 1.1.1i (Affected 1.1.1-1.1.1h). Fixed in OpenSSL 1.0.2x (Affected 1.0.2-1.0.2w).
CVE-2020-11023 Medium 2020-04-29 Outside Waratek scope Exploited In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing <option> elements from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. This problem is patched in jQuery 3.5.0.
CVE-2020-11022 Medium 2020-04-29 Outside Waratek scope Exploited In jQuery starting with 1.12.0 and before 3.5.0, passing HTML from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. This problem is patched in jQuery 3.5.0.
CVE-2019-0221 Medium 2019-05-28 Mitigation candidate Working exploit published The SSI printenv command in Apache Tomcat 9.0.0.M1 to 9.0.0.17, 8.5.0 to 8.5.39 and 7.0.0 to 7.0.93 echoes user provided data without escaping and is, therefore, vulnerable to XSS. SSI is disabled by default. The printenv command is intended for debugging and is unlikely to be present in a production website.
CVE-2019-11358 Medium 2019-04-20 Outside Waratek scope Exploited jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source object contained an enumerable __proto__ property, it could extend the native Object.prototype.
CVE-2016-5725 Medium 2017-01-19 Protected by Waratek Working exploit published Directory traversal vulnerability in JCraft JSch before 0.1.54 on Windows, when the mode is ChannelSftp.OVERWRITE, allows remote SFTP servers to write to arbitrary files via a ..\ (dot dot backslash) in a response to a recursive GET command.