ghsa-w67w-mw4j-8qrv
Vulnerability from github
A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer.
The read buffer overrun might result in a crash which could lead to a denial of service attack. In theory it could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext) although we are not aware of any working exploit leading to memory contents disclosure as of the time of release of this advisory.
In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "openssl-src"
},
"ranges": [
{
"events": [
{
"introduced": "300.0.0"
},
{
"fixed": "300.0.12"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-4203"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": true,
"github_reviewed_at": "2023-02-08T22:27:42Z",
"nvd_published_at": "2023-02-24T15:15:00Z",
"severity": "CRITICAL"
},
"details": "A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs\nafter certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to\ncontinue certificate verification despite failure to construct a path to a trusted issuer.\n\nThe read buffer overrun might result in a crash which could lead to a denial of service attack. In theory it could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext) although we are not aware of any working exploit leading to memory contents disclosure as of the time of release of this advisory.\n\nIn a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.\n",
"id": "GHSA-w67w-mw4j-8qrv",
"modified": "2023-03-06T21:59:59Z",
"published": "2023-02-08T22:27:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-4203"
},
{
"type": "WEB",
"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2023-0008.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202402-08"
},
{
"type": "WEB",
"url": "https://www.openssl.org/news/secadv/20230207.txt"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "openssl-src contains Read Buffer Overflow in X.509 Name Constraint"
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.