CVSS: 8.8EPSS: 0%CPEs: 8EXPL: 0CVE-2021-1844 – webkitgtk: Memory corruption issue leading to arbitrary code execution
https://notcve.org/view.php?id=CVE-2021-1844
A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v. 14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution. Se abordó un problema de corrupción de memoria con una comprobación mejorada. Este problema es corregido en iOS versión 14.4.1 y iPadOS versión 14.4.1, Safari versión 14.0.3 (versiones v.14610.4.3.1.7 y 15610.4.3.1.7), watchOS versión 7.3.2, macOS Big Sur versión 11.2.3. • http://seclists.org/fulldisclosure/2021/Apr/55 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU https://support.apple.com/en-us/HT212220 https://support.apple.com/en-us/HT212221 https://support.apple.com/en-us/HT212222 https://support.apple.com/en-us/HT212223 https://support.apple.com/kb/HT212323 https://www.debian.org/security/2021/dsa-4923 https://access.redhat.com/security/cve/CVE-2021-1844 https://b • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •
CVSS: 8.0EPSS: 85%CPEs: 21EXPL: 12CVE-2021-21300 – malicious repositories can execute remote code while cloning
https://notcve.org/view.php?id=CVE-2021-21300
Git is an open-source distributed revision control system. In affected versions of Git a specially crafted repository that contains symbolic links as well as files using a clean/smudge filter such as Git LFS, may cause just-checked out script to be executed while cloning onto a case-insensitive file system such as NTFS, HFS+ or APFS (i.e. the default file systems on Windows and macOS). Note that clean/smudge filters have to be configured for that. Git for Windows configures Git LFS by default, and is therefore vulnerable. The problem has been patched in the versions published on Tuesday, March 9th, 2021. • https://github.com/AlkenePan/CVE-2021-21300 https://github.com/Maskhe/CVE-2021-21300 https://github.com/1uanWu/CVE-2021-21300 https://github.com/Roboterh/CVE-2021-21300 https://github.com/Saboor-Hakimi-23/CVE-2021-21300 https://github.com/Kirill89/CVE-2021-21300 https://github.com/erranfenech/CVE-2021-21300 https://github.com/fengzhouc/CVE-2021-21300 https://github.com/danshuizhangyu/CVE-2021-21300 https://github.com/Faisal78123/CVE-2021-21300 http://packetstormsecurity. • CWE-59: Improper Link Resolution Before File Access ('Link Following') •
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: 9.3EPSS: 0%CPEs: 20EXPL: 0CVE-2021-1805 – Apple macOS process_token_BindQueryBufferMultiple Out-Of-Bounds Write Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2021-1805
An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update, macOS Mojave 10.14.6 Security Update 2021-002. An application may be able to execute arbitrary code with kernel privileges. Se abordó una escritura fuera de límites con una comprobación de la entrada mejorada. Este problema es corregido en macOS Big Sur versión 11.2.1, Supplemental Update de macOS Catalina versión 10.15.7, Security Update de macOS Mojave versión 10.14.6 2021-002. • http://seclists.org/fulldisclosure/2021/Apr/54 https://support.apple.com/en-us/HT212177 https://support.apple.com/kb/HT212327 • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 18EXPL: 0CVE-2021-1806 – Apple macOS process_token_BlitLibSetup2D Time-Of-Check Time-Of-Use Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2021-1806
A race condition was addressed with additional validation. This issue is fixed in macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update, macOS Mojave 10.14.6 Security Update 2021-002. An application may be able to execute arbitrary code with kernel privileges. Se abordó una condición de carrera con una comprobación adicional. Este problema es corregido en macOS Big Sur versión 11.2.1, Supplemental Update de macOS Catalina versión 10.15.7, Security Update de macOS Mojave versión 10.14.6 2021-002. • http://seclists.org/fulldisclosure/2021/Apr/54 https://support.apple.com/en-us/HT212177 https://support.apple.com/kb/HT212327 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •