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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✕
Overview 121 matches · 86 in Waratek scope · 7 protected · 0 exploited · 0 CISA KEV · 5 public PoC · 8 EPSS ≥ 0.5
121matches 86in Waratek scope71.1% 7protected5.8% 0exploited0.0% 0CISA KEV0.0% 5public PoC4.1% 8EPSS ≥ 0.56.6%
Protected by Waratek 7 5.8% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 79 65.3% Outside Waratek scope 10 8.3% Not applicable 25 20.7% Withdrawn CVE 0 0.0%
Critical 0 0.0% High 121 100.0% Medium 0 0.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 7 5.8% partly blocked 0 0.0% not blocked 114 94.2% not established 0 0.0% unrecorded 0 0.0%
Exploited 0 0.0% Working exploit published 2 1.7% Proof of concept only 3 2.5% Forecast only 3 2.5% No public exploit 113 93.4%
split by peak 86 / quarter
Not applicable: 25Outside Waratek scope: 10No exploit published: 79Protected by Waratek: 7 High: 121 not blocked: 114blocked by ARMR today: 7 No public exploit: 113Forecast only: 3Proof of concept only: 3Working exploit published: 2
Q3 171 Not applicable1 High1 not blocked1 No public exploit1 Q4 170 Q1 181 No exploit published1 High1 not blocked1 No public exploit1 Q2 181 No exploit published1 High1 not blocked1 No public exploit1 Q3 180 Q4 180 Q1 190 Q2 193 Outside Waratek scope2 Not applicable1 High3 not blocked3 Working exploit published1 No public exploit2 Q3 192 Protected by Waratek1 No exploit published1 High2 blocked by ARMR today1 not blocked1 No public exploit2 Q4 191 Protected by Waratek1 High1 blocked by ARMR today1 No public exploit1 Q1 203 No exploit published1 Outside Waratek scope1 Not applicable1 High3 not blocked3 Proof of concept only1 No public exploit2 Q2 205 Protected by Waratek1 Outside Waratek scope3 Not applicable1 High5 blocked by ARMR today1 not blocked4 Proof of concept only1 No public exploit4 Q3 203 Protected by Waratek1 No exploit published1 Not applicable1 High3 blocked by ARMR today1 not blocked2 No public exploit3 Q4 2011 Protected by Waratek3 No exploit published4 Outside Waratek scope3 Not applicable1 High11 blocked by ARMR today3 not blocked8 Working exploit published1 Proof of concept only1 No public exploit9 Q1 214 No exploit published2 Not applicable2 High4 not blocked4 Forecast only1 No public exploit3 Q2 2186 No exploit published68 Outside Waratek scope1 Not applicable17 High86 not blocked86 Forecast only2 No public exploit84
Q4 17Q2 18Q4 18Q2 19Q4 19Q2 20Q4 20Q2 21
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CVE Severity Published▾ Status Exploitation Description
CVE-2020-11979 High 2020-10-01 No exploit published No public exploit As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection, effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.
CVE-2020-24750 High 2020-09-17 Protected by Waratek No public exploit FasterXML jackson-databind 2.x before 2.9.10.6 mishandles the interaction between serialization gadgets and typing, related to com.pastdev.httpcomponents.configuration.JndiConfiguration.
CVE-2020-8203 High 2020-07-15 Not applicable No public exploit Prototype pollution attack when using _.zipObjectDeep in lodash before 4.17.20.
CVE-2020-11994 High 2020-07-08 No exploit published No public exploit Server-Side Template Injection and arbitrary file disclosure on Camel templating components
CVE-2020-14195 High 2020-06-16 Protected by Waratek No public exploit FasterXML jackson-databind 2.x before 2.9.10.5 mishandles the interaction between serialization gadgets and typing, related to org.jsecurity.realm.jndi.JndiRealmFactory (aka org.jsecurity).
CVE-2020-13871 High 2020-06-06 Not applicable No public exploit SQLite 3.32.2 has a use-after-free in resetAccumulator in select.c because the parse tree rewrite for window functions is too late.
CVE-2020-10878 High 2020-06-05 Outside Waratek scope No public exploit Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection.
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-2020-11612 High 2020-04-07 Outside Waratek scope No public exploit The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.
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-2019-12423 High 2020-01-16 No exploit published No public exploit Apache CXF ships with a OpenId Connect JWK Keys service, which allows a client to obtain the public keys in JWK format, which can then be used to verify the signature of tokens issued by the service. Typically, the service obtains the public key from a local keystore (JKS/PKCS12) by specifing the path of the keystore and the alias of the keystore entry. This case is not vulnerable. However it is also possible to obtain the keys from a JWK keystore file, by setting the configuration parameter "rs.security.keystore.type" to "jwk". For this case all keys are returned in this file "as is", including all private key and secret key credentials. This is an obvious security risk if the user has configured the signature keystore file with private or secret key credentials. From CXF 3.3.5 and 3.2.12, it is mandatory to specify an alias corresponding to the id of the key in the JWK file, and only this key is returned. In addition, any private key information is omitted by default. "oct" keys, which contain secret keys, are not returned at all.
CVE-2019-5064 High 2020-01-03 Not applicable No public exploit An exploitable heap buffer overflow vulnerability exists in the data structure persistence functionality of OpenCV, before version 4.2.0. A specially crafted JSON file can cause a buffer overflow, resulting in multiple heap corruptions and potentially code execution. An attacker can provide a specially crafted file to trigger this vulnerability.
CVE-2017-18640 High 2019-12-12 Protected by Waratek No public exploit The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.
CVE-2019-12402 High 2019-08-30 No exploit published No public exploit The file name encoding algorithm used internally in Apache Commons Compress 1.15 to 1.18 can get into an infinite loop when faced with specially crafted inputs. This can lead to a denial of service attack if an attacker can choose the file names inside of an archive created by Compress.
CVE-2019-10086 High 2019-08-20 Protected by Waratek No public exploit In Apache Commons Beanutils 1.9.2, a special BeanIntrospector class was added which allows suppressing the ability for an attacker to access the classloader via the class property available on all Java objects. We, however were not using this by default characteristic of the PropertyUtilsBean.
CVE-2018-20843 High 2019-06-24 Not applicable No public exploit In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).
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.
CVE-2019-3900 High 2019-04-25 Outside Waratek scope No public exploit An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario.
CVE-2018-1000180 High 2018-06-05 No exploit published No public exploit Bouncy Castle BC 1.54 - 1.59, BC-FJA 1.0.0, BC-FJA 1.0.1 and earlier have a flaw in the Low-level interface to RSA key pair generator, specifically RSA Key Pairs generated in low-level API with added certainty may have less M-R tests than expected. This appears to be fixed in versions BC 1.60 beta 4 and later, BC-FJA 1.0.2 and later.
CVE-2017-12626 High 2018-01-29 No exploit published No public exploit Apache POI in versions prior to release 3.17 are vulnerable to Denial of Service Attacks: 1) Infinite Loops while parsing crafted WMF, EMF, MSG and macros (POI bugs 61338 and 61294), and 2) Out of Memory Exceptions while parsing crafted DOC, PPT and XLS (POI bugs 52372 and 61295).
CVE-2017-1000061 High 2017-07-17 Not applicable No public exploit xmlsec 1.2.23 and before is vulnerable to XML External Entity Expansion when parsing crafted input documents, resulting in possible information disclosure or denial of service
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