254 lines
10 KiB
JSON
254 lines
10 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.1",
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"cveMetadata": {
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"cveId": "CVE-2023-6936",
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"assignerOrgId": "50d2cd11-d01a-48ed-9441-5bfce9d63b27",
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"state": "PUBLISHED",
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"assignerShortName": "wolfSSL",
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"dateReserved": "2023-12-18T22:01:24.437Z",
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"datePublished": "2024-02-20T21:52:02.441Z",
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"dateUpdated": "2025-03-26T16:28:30.322Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"modules": [
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"TLS"
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],
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"product": "wolfSSL",
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"repo": "https://github.com/wolfSSL/wolfssl",
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"vendor": "wolfSSL",
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"versions": [
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{
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"lessThanOrEqual": "5.6.5",
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"status": "affected",
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"version": "0",
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"versionType": "release bundle"
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}
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]
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}
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],
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"configurations": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "To be vulnerable, wolfSSL callback functionality (which includes handshake and timeout callback functionality) must must be enabled with:<br><b><span style=\"background-color: transparent;\">CFLAGS=\"-DWOLFSSL_CALLBACKS\"</span></b><br><br>This option is disabled by default. The default configuration of wolfSSL is not vulnerable."
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}
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],
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"value": "To be vulnerable, wolfSSL callback functionality (which includes handshake and timeout callback functionality) must must be enabled with:\nCFLAGS=\"-DWOLFSSL_CALLBACKS\"\n\nThis option is disabled by default. The default configuration of wolfSSL is not vulnerable."
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"user": "00000000-0000-4000-9000-000000000000",
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"value": "Lucca Hirschi (Inria, LORIA)"
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},
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{
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"lang": "en",
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"type": "finder",
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"user": "00000000-0000-4000-9000-000000000000",
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"value": "Steve Kremer (Inria, LORIA)"
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},
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{
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"lang": "en",
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"type": "finder",
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"user": "00000000-0000-4000-9000-000000000000",
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"value": "Max Ammann (Trail of Bits)"
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},
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{
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"lang": "en",
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"type": "tool",
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"user": "00000000-0000-4000-9000-000000000000",
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"value": "tlspuffin"
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}
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],
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"datePublic": "2023-12-20T00:00:00.000Z",
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "In wolfSSL prior to 5.6.6, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS client or network attacker can trigger a buffer over-read on the heap of 5 bytes (WOLFSSL_CALLBACKS is only intended for debugging).<br>"
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}
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],
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"value": "In wolfSSL prior to 5.6.6, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS client or network attacker can trigger a buffer over-read on the heap of 5 bytes (WOLFSSL_CALLBACKS is only intended for debugging).\n"
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 5.3,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "LOW",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
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"version": "3.1"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "50d2cd11-d01a-48ed-9441-5bfce9d63b27",
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"shortName": "wolfSSL",
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"dateUpdated": "2024-02-20T21:52:02.441Z"
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},
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"references": [
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/wolfSSL/wolfssl/pull/6949/"
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},
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{
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"tags": [
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"vendor-advisory"
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],
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"url": "https://www.wolfssl.com/docs/security-vulnerabilities/"
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}
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],
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"solutions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<p><span style=\"background-color: transparent;\">The fix for this issue is located in the following GitHub Pull Request: </span><a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/wolfSSL/wolfssl/pull/6949/\">https://github.com/wolfSSL/wolfssl/pull/6949/</a></p>"
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}
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],
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"value": "The fix for this issue is located in the following GitHub Pull Request: https://github.com/wolfSSL/wolfssl/pull/6949/ https://github.com/wolfSSL/wolfssl/pull/6949/ \n\n"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"title": " Heap-buffer over-read with WOLFSSL_CALLBACKS",
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"workarounds": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<li>Do not build wolfSSL with <b>WOLFSSL_CALLBACKS</b> defined</li>"
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}
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],
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"value": " * Do not build wolfSSL with WOLFSSL_CALLBACKS defined\n"
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}
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],
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"x_generator": {
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"engine": "Vulnogram 0.1.0-dev"
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}
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},
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"adp": [
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{
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"problemTypes": [
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{
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"descriptions": [
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{
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"type": "CWE",
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"cweId": "CWE-126",
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"lang": "en",
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"description": "CWE-126 Buffer Over-read"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "wolfssl",
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"product": "wolfssl",
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"cpes": [
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"cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unknown",
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"versions": [
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{
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"version": "0",
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"status": "affected",
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"lessThanOrEqual": "5.6.5",
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"versionType": "custom"
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}
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2024-08-27T14:22:41.353325Z",
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"id": "CVE-2023-6936",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2025-03-26T16:28:30.322Z"
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}
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},
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{
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2024-08-02T08:42:08.671Z"
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},
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"title": "CVE Program Container",
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"references": [
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{
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"tags": [
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"patch",
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"x_transferred"
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],
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"url": "https://github.com/wolfSSL/wolfssl/pull/6949/"
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},
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{
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"tags": [
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"vendor-advisory",
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"x_transferred"
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],
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"url": "https://www.wolfssl.com/docs/security-vulnerabilities/"
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}
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]
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}
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]
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}
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} |