CVSS: 5.9EPSS: 0%CPEs: 38EXPL: 0CVE-2021-23841 – Null pointer deref in X509_issuer_and_serial_hash()
https://notcve.org/view.php?id=CVE-2021-23841
The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. • http://seclists.org/fulldisclosure/2021/May/67 http://seclists.org/fulldisclosure/2021/May/68 http://seclists.org/fulldisclosure/2021/May/70 https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=122a19ab48091c657f7cb1fb3af9fc07bd557bbf https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=8252ee4d90f3f2004d3d0aeeed003ad49c9a7807 https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44846 https://security.gentoo.org/gls • CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 22EXPL: 0CVE-2020-29624 – Apple CoreText libFontParser.dylib Stack Corruption
https://notcve.org/view.php?id=CVE-2020-29624
A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation. This issue is fixed in watchOS 7.2, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, iOS 14.3 and iPadOS 14.3, tvOS 14.3. Processing a maliciously crafted font file may lead to arbitrary code execution. Se presentó un problema de corrupción de memoria en un procesamiento de archivos de fuentes. • https://support.apple.com/en-us/HT212003 https://support.apple.com/en-us/HT212005 https://support.apple.com/en-us/HT212009 https://support.apple.com/en-us/HT212011 • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 23EXPL: 0CVE-2021-1783
https://notcve.org/view.php?id=CVE-2021-1783
An access issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to arbitrary code execution. Se abordó un problema de acceso con una administración de la memoria mejorada. Este problema es corregido en macOS Big Sur versión 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS versión 7.3, tvOS versión 14.4, iOS versión 14.4 y iPadOS versión 14.4. • https://support.apple.com/en-us/HT212146 https://support.apple.com/en-us/HT212147 https://support.apple.com/en-us/HT212148 https://support.apple.com/en-us/HT212149 •
CVSS: 7.8EPSS: 0%CPEs: 23EXPL: 0CVE-2021-1785
https://notcve.org/view.php?id=CVE-2021-1785
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to arbitrary code execution. Se abordó una lectura fuera de límites con una comprobación de la entrada mejorada. Este problema es corregido en macOS Big Sur versión 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS versión 7.3, tvOS versión 14.4, iOS versión 14.4 y iPadOS versión 14.4. • https://support.apple.com/en-us/HT212146 https://support.apple.com/en-us/HT212147 https://support.apple.com/en-us/HT212148 https://support.apple.com/en-us/HT212149 • CWE-125: Out-of-bounds Read •
CVSS: 5.5EPSS: 0%CPEs: 23EXPL: 0CVE-2021-1786
https://notcve.org/view.php?id=CVE-2021-1786
A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A local user may be able to create or modify system files. Se abordó un problema de lógica con una administración de estado mejorada. Este problema es corregido en macOS Big Sur versión 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS versión 7.3, tvOS versión 14.4, iOS versión 14.4 y iPadOS versión 14.4. • https://support.apple.com/en-us/HT212146 https://support.apple.com/en-us/HT212147 https://support.apple.com/en-us/HT212148 https://support.apple.com/en-us/HT212149 •