cve-2022-4203
Vulnerability from cvelistv5
Published
2023-02-24 14:53
Modified
2024-08-03 01:34
Severity
Summary
X.509 Name Constraints Read Buffer Overflow
References
SourceURLTags
openssl-security@openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabcMailing List, Patch
openssl-security@openssl.orghttps://security.gentoo.org/glsa/202402-08
openssl-security@openssl.orghttps://www.openssl.org/news/secadv/20230207.txtVendor Advisory
Impacted products
VendorProduct
OpenSSLOpenSSL
Show details on NVD website

To clipboard 

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              "value": "A read buffer overrun can be triggered in X.509 certificate verification,\u003cbr\u003especifically in name constraint checking. Note that this occurs\u003cbr\u003eafter certificate chain signature verification and requires either a\u003cbr\u003eCA to have signed the malicious certificate or for the application to\u003cbr\u003econtinue certificate verification despite failure to construct a path\u003cbr\u003eto a trusted issuer.\u003cbr\u003e\u003cbr\u003eThe read buffer overrun might result in a crash which could lead to\u003cbr\u003ea denial of service attack. In theory it could also result in the disclosure\u003cbr\u003eof private memory contents (such as private keys, or sensitive plaintext)\u003cbr\u003ealthough we are not aware of any working exploit leading to memory\u003cbr\u003econtents disclosure as of the time of release of this advisory.\u003cbr\u003e\u003cbr\u003eIn a TLS client, this can be triggered by connecting to a malicious\u003cbr\u003eserver. In a TLS server, this can be triggered if the server requests\u003cbr\u003eclient authentication and a malicious client connects.\u003cbr\u003e\u003cbr\u003e"
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      "source": {
        "discovery": "UNKNOWN"
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    "dateReserved": "2022-11-29T10:00:42.027Z",
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