[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fG6yzaRpsGGSzVF4I5L6EWccJ9_E93FP6k51jp5hxXqo":3,"g5a-risk:CVE-2020-20949":233},{"success":4,"data":5,"meta":231},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":38,"epssPercentile":26,"epssTimeSeries":39,"severity":41,"affectedProducts":42,"affectedProductsCount":113,"references":114,"referencesCount":137,"weaknesses":138,"weaknessesCount":147,"isActivelyExploited":148,"cisaInfo":26,"otxData":26,"relatedBlogPosts":149,"seoMetadata":150,"configurations":175,"relatedVendorCves":229,"notableEvents":230},"CVE-2020-20949","What is CVE-2020-20949?","Bleichenbacher's attack on PKCS #1 v1.5 padding for RSA in STM32 cryptographic firmware library software expansion for STM32Cube (UM1924). The vulnerability can allow one to use Bleichenbacher's oracle attack to decrypt an encrypted ciphertext by making successive queries to the server using the vulnerable library, resulting in remote information disclosure.","Bleichenbacher's attack on PKCS #1 v1.5 padding for RSA in STM32 cryptographic firmware library software expansion for STM32Cube (UM1924). The vulnerability 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Insecure cryptography can be exploited to expose sensitive information, modify data in unexpected ways, spoof identities of other users or devices, or other impacts.\nIt is very difficult to produce a secure algorithm, and even high-profile algorithms by accomplished cryptographic experts have been broken. Well-known techniques exist to break or weaken various kinds of cryptography. Accordingly, there are a small number of well-understood and heavily studied algorithms that should be used by most products. Using a non-standard or known-insecure algorithm is dangerous because a determined adversary may be able to break the algorithm and compromise whatever data has been protected.\nSince the state of cryptography advances so rapidly, it is common for an algorithm to be considered \"unsafe\" even if it was once thought to be strong. This can happen when new attacks are discovered, or if computing power increases so much that the cryptographic algorithm no longer provides the amount of protection that was originally thought.\nFor a number of reasons, this weakness is even more challenging to manage with hardware deployment of cryptographic algorithms as opposed to software implementation. First, if a flaw is discovered with hardware-implemented cryptography, the flaw cannot be fixed in most cases without a recall of the product, because hardware is not easily replaceable like software. Second, because the hardware product is expected to work for years, the adversary's computing power will only increase over time.","Draft","Class","Simple",1,false,[],{"title":151,"metaDescription":152,"keywords":153,"canonicalUrl":154,"structuredData":155},"What is CVE-2020-20949? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2020-20949, a medium severity cyber security vulnerability from 2021. Bleichenbacher's attack on PKCS #1 v1.5 padding for RSA i...","CVE-2020-20949, CVE-2020-20949 vulnerability, CVE-2020-20949 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, st security, stm32cubef0 vulnerability, stm32cubef1 vulnerability, stm32cubef2 vulnerability, stm32cubef3 vulnerability, stm32cubef4 vulnerability","\u002Fwhat-is\u002Fcve-2020-20949",{"@context":156,"@type":157,"headline":151,"description":152,"datePublished":10,"dateModified":11,"author":158,"publisher":162,"about":166,"mainEntityOfPage":170,"articleSection":173,"keywords":174},"https:\u002F\u002Fschema.org","TechArticle",{"@type":159,"name":160,"url":161},"Organization","Precursor 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