{"id":"GHSA-hgv6-w7r3-w4qw","revision":"2e37ce5bb3ea4184b0467d30c211881d","records":[{"revision":"2e37ce5bb3ea4184b0467d30c211881d","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-hgv6-w7r3-w4qw","aliases":["BIT-kyverno-2023-54356","CVE-2023-54356","GO-2023-1804"],"title":"Kyverno vulnerable due to usage of insecure cipher","description":"### Summary\nInsecure 3DES ciphers are used which may lead to exploitation of the [Sweet32 vulnerability](https://sweet32.info/). Specifically, the ciphers TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (secp256r1) and TLS_RSA_WITH_3DES_EDE_CBC_SHA (rsa 2048) are allowed. See CVE-2016-2183. This is fixed in Kyverno v1.9.5 and v1.10.0 and no known users have been affected.\n\n### Details\n\nThe ciphers in affected versions can be read using the following command which uses `nmap`:\n\n```sh\n$ kubectl exec -it mypod -n kyverno sh \nkubectl exec [POD] [COMMAND] is DEPRECATED and will be removed in a future version. Use kubectl exec [POD] -- [COMMAND] instead.\n**nmap -sV --script ssl-enum-ciphers -p 443 kyverno-cleanup-controller** or  \n**nmap -sV --script ssl-enum-ciphers -p 443 kyverno-svc**\nStarting Nmap 7.92 ( https://nmap.org ) at 2023-05-26 10:55 UTC\nNmap scan report for kyverno-cleanup-controller (10.103.199.233)\nHost is up (0.000058s latency).\nrDNS record for 10.103.199.233: kyverno-cleanup-controller.kyverno.svc.cluster.local\n\nPORT    STATE SERVICE  VERSION\n443/tcp open  ssl/http Golang net/http server (Go-IPFS json-rpc or InfluxDB API)\n| ssl-enum-ciphers: \n|   TLSv1.2: \n|     ciphers: \n**|       TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (secp256r1) - C**\n|       TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (secp256r1) - A\n|       TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (secp256r1) - A\n|       TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (secp256r1) - A\n|       TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (secp256r1) - A\n|       TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (secp256r1) - A\n**|       TLS_RSA_WITH_3DES_EDE_CBC_SHA (rsa 2048) - C**\n|       TLS_RSA_WITH_AES_128_CBC_SHA (rsa 2048) - A\n|       TLS_RSA_WITH_AES_128_GCM_SHA256 (rsa 2048) - A\n|       TLS_RSA_WITH_AES_256_CBC_SHA (rsa 2048) - A\n|       TLS_RSA_WITH_AES_256_GCM_SHA384 (rsa 2048) - A\n|     compressors: \n|       NULL\n|     cipher preference: client\n|     warnings: \n|       64-bit block cipher 3DES vulnerable to SWEET32 attack\n|   TLSv1.3: \n|     ciphers: \n|       TLS_AKE_WITH_AES_128_GCM_SHA256 (ecdh_x25519) - A\n|       TLS_AKE_WITH_AES_256_GCM_SHA384 (ecdh_x25519) - A\n|       TLS_AKE_WITH_CHACHA20_POLY1305_SHA256 (ecdh_x25519) - A\n|     cipher preference: server\n|_  least strength: C\n\nService detection performed. Please report any incorrect results at https://nmap.org/submit/ .\nNmap done: 1 IP address (1 host up) scanned in 12.72 seconds\n```","state":0,"publishedAt":"2023-05-30T20:07:06+00:00","modifiedAt":"2026-10-14T11:10:48.9785362+00:00","affected":[{"ecosystem":"Go","name":"github.com/kyverno/kyverno","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.9.5"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/kyverno/kyverno/security/advisories/GHSA-hgv6-w7r3-w4qw","https://github.com/kyverno/kyverno/pull/7308","https://github.com/kyverno/kyverno","https://github.com/kyverno/kyverno/releases/tag/v1.9.5"],"sourceUrl":"https://github.com/advisories/GHSA-hgv6-w7r3-w4qw","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-hgv6-w7r3-w4qw","identifiers":["GHSA-hgv6-w7r3-w4qw","BIT-kyverno-2023-54356","CVE-2023-54356","GO-2023-1804"]},"retained":false,"historicalAffected":[]}],"coverage":[]}