Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/94094?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/94094?format=api", "vulnerability_id": "VCID-dwyw-64yp-vygf", "summary": "In wolfSSL 4.1.0 through 4.2.0c, there are missing sanity checks of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer overflow inside the DecodedCert structure in GetName in wolfcrypt/src/asn.c because the domain name location index is mishandled. Because a pointer is overwritten, there is an invalid free.", "aliases": [ { "alias": "CVE-2019-18840" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/942897?format=api", "purl": "pkg:deb/debian/wolfssl@4.2.0%2Bdfsg-3?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@4.2.0%252Bdfsg-3%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/942885?format=api", "purl": "pkg:deb/debian/wolfssl@4.6.0%2Bp1-0%2Bdeb11u2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1u3q-52yd-1bhe" }, { "vulnerability": "VCID-24s5-d6jt-4kfe" }, { "vulnerability": "VCID-2ry7-trrg-gfdk" }, { "vulnerability": "VCID-47nm-nte5-27fm" }, { "vulnerability": "VCID-4zda-zrq6-hbc8" }, { "vulnerability": "VCID-6n4g-us9a-53g4" }, { "vulnerability": "VCID-6v8z-cfax-zqbh" }, { "vulnerability": "VCID-7xbp-qkvv-bqgm" }, { "vulnerability": "VCID-8735-ectc-j7a3" }, { "vulnerability": "VCID-9hdy-aqa2-w3bd" }, { "vulnerability": "VCID-9jpj-dfsf-qkce" }, { "vulnerability": "VCID-9jw2-3v9v-ruap" }, { "vulnerability": "VCID-9kev-ferz-5bhr" }, { "vulnerability": "VCID-9x14-2t7m-1kbm" }, { "vulnerability": "VCID-cum2-vp1j-syfc" }, { "vulnerability": "VCID-cxhw-3w24-dkes" }, { "vulnerability": "VCID-dpu2-4w42-kygw" }, { "vulnerability": "VCID-euma-vgqx-sbau" }, { "vulnerability": "VCID-f4gq-hqcp-dqe2" }, { "vulnerability": "VCID-f57c-kamk-3bct" }, { "vulnerability": "VCID-fmtp-x6y7-83g1" }, { "vulnerability": "VCID-gcfd-w8je-kqfm" }, { "vulnerability": "VCID-gdur-h588-vbb6" }, { "vulnerability": "VCID-gmdj-a1ys-tqc2" }, { "vulnerability": "VCID-h6na-nxxq-5yg9" }, { "vulnerability": "VCID-hk8r-kk4v-1fa7" }, { "vulnerability": "VCID-jxf4-y1au-5bhw" }, { "vulnerability": "VCID-khur-3ax7-9fhb" }, { "vulnerability": "VCID-n64w-nq6a-m7bv" }, { "vulnerability": "VCID-njbj-f91t-b7f4" }, { "vulnerability": "VCID-su8x-6n42-n3d5" }, { "vulnerability": "VCID-u24a-2khf-uyba" }, { "vulnerability": "VCID-uvht-9bt9-hfbb" }, { "vulnerability": "VCID-v3m6-zajw-bfhb" }, { "vulnerability": "VCID-xfgd-4hs3-vygk" }, { "vulnerability": "VCID-xuyn-pjpb-g7du" }, { "vulnerability": "VCID-xxkx-w5pc-5uap" }, { "vulnerability": "VCID-zhf4-y8v8-gubn" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@4.6.0%252Bp1-0%252Bdeb11u2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/942883?format=api", "purl": "pkg:deb/debian/wolfssl@5.5.4-2%2Bdeb12u2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1u3q-52yd-1bhe" }, { "vulnerability": "VCID-24s5-d6jt-4kfe" }, { "vulnerability": "VCID-2ry7-trrg-gfdk" }, { "vulnerability": "VCID-47nm-nte5-27fm" }, { "vulnerability": "VCID-4zda-zrq6-hbc8" }, { "vulnerability": "VCID-6v8z-cfax-zqbh" }, { "vulnerability": "VCID-7xbp-qkvv-bqgm" }, { "vulnerability": "VCID-8735-ectc-j7a3" }, { "vulnerability": "VCID-9hdy-aqa2-w3bd" }, { "vulnerability": "VCID-9jpj-dfsf-qkce" }, { "vulnerability": "VCID-9jw2-3v9v-ruap" }, { "vulnerability": "VCID-9kev-ferz-5bhr" }, { "vulnerability": "VCID-9x14-2t7m-1kbm" }, { "vulnerability": "VCID-cxhw-3w24-dkes" }, { "vulnerability": "VCID-dpu2-4w42-kygw" }, { "vulnerability": "VCID-euma-vgqx-sbau" }, { "vulnerability": "VCID-f57c-kamk-3bct" }, { "vulnerability": "VCID-fmtp-x6y7-83g1" }, { "vulnerability": "VCID-gcfd-w8je-kqfm" }, { "vulnerability": "VCID-gdur-h588-vbb6" }, { "vulnerability": "VCID-gmdj-a1ys-tqc2" }, { "vulnerability": "VCID-h6na-nxxq-5yg9" }, { "vulnerability": "VCID-hk8r-kk4v-1fa7" }, { "vulnerability": "VCID-jxf4-y1au-5bhw" }, { "vulnerability": "VCID-khur-3ax7-9fhb" }, { "vulnerability": "VCID-n64w-nq6a-m7bv" }, { "vulnerability": "VCID-njbj-f91t-b7f4" }, { "vulnerability": "VCID-su8x-6n42-n3d5" }, { "vulnerability": "VCID-u24a-2khf-uyba" }, { "vulnerability": "VCID-uvht-9bt9-hfbb" }, { "vulnerability": "VCID-v3m6-zajw-bfhb" }, { "vulnerability": "VCID-xfgd-4hs3-vygk" }, { "vulnerability": "VCID-xuyn-pjpb-g7du" }, { "vulnerability": "VCID-xxkx-w5pc-5uap" }, { "vulnerability": "VCID-zhf4-y8v8-gubn" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.5.4-2%252Bdeb12u2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/942887?format=api", "purl": "pkg:deb/debian/wolfssl@5.7.2-0.1%2Bdeb13u1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-2ry7-trrg-gfdk" }, { "vulnerability": "VCID-4zda-zrq6-hbc8" }, { "vulnerability": "VCID-6v8z-cfax-zqbh" }, { "vulnerability": "VCID-8735-ectc-j7a3" }, { "vulnerability": "VCID-9jpj-dfsf-qkce" }, { "vulnerability": "VCID-9jw2-3v9v-ruap" }, { "vulnerability": "VCID-9kev-ferz-5bhr" }, { "vulnerability": "VCID-9x14-2t7m-1kbm" }, { "vulnerability": "VCID-cxhw-3w24-dkes" }, { "vulnerability": "VCID-f57c-kamk-3bct" }, { "vulnerability": "VCID-fmtp-x6y7-83g1" }, { "vulnerability": "VCID-gcfd-w8je-kqfm" }, { "vulnerability": "VCID-gdur-h588-vbb6" }, { "vulnerability": "VCID-gmdj-a1ys-tqc2" }, { "vulnerability": "VCID-h6na-nxxq-5yg9" }, { "vulnerability": "VCID-hk8r-kk4v-1fa7" }, { "vulnerability": "VCID-jxf4-y1au-5bhw" }, { "vulnerability": "VCID-khur-3ax7-9fhb" }, { "vulnerability": "VCID-n64w-nq6a-m7bv" }, { "vulnerability": "VCID-njbj-f91t-b7f4" }, { "vulnerability": "VCID-uvht-9bt9-hfbb" }, { "vulnerability": "VCID-v3m6-zajw-bfhb" }, { "vulnerability": "VCID-xuyn-pjpb-g7du" }, { "vulnerability": "VCID-xxkx-w5pc-5uap" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.7.2-0.1%252Bdeb13u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/942886?format=api", "purl": "pkg:deb/debian/wolfssl@5.9.0-0.2?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.9.0-0.2%3Fdistro=trixie" } ], "affected_packages": [], "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2019-18840", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00411", "scoring_system": "epss", "scoring_elements": "0.61428", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00411", "scoring_system": "epss", "scoring_elements": "0.61409", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00411", "scoring_system": "epss", "scoring_elements": "0.6139", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00411", "scoring_system": "epss", "scoring_elements": "0.61262", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.00411", "scoring_system": "epss", "scoring_elements": "0.61342", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00411", "scoring_system": "epss", "scoring_elements": "0.6137", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00411", "scoring_system": "epss", "scoring_elements": "0.6134", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00411", "scoring_system": "epss", "scoring_elements": "0.61387", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00411", "scoring_system": "epss", "scoring_elements": "0.61402", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00411", "scoring_system": "epss", "scoring_elements": "0.61423", "published_at": "2026-04-11T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-18840" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18840", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18840" }, { "reference_url": "https://github.com/wolfSSL/wolfssl/issues/2555", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/wolfSSL/wolfssl/issues/2555" }, { "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*", "reference_id": "cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18840", "reference_id": "CVE-2019-18840", "reference_type": "", "scores": [ { "value": "5.0", "scoring_system": "cvssv2", "scoring_elements": "AV:N/AC:L/Au:N/C:N/I:N/A:P" }, { "value": "7.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18840" } ], "weaknesses": [ { "cwe_id": 787, "name": "Out-of-bounds Write", "description": "The product writes data past the end, or before the beginning, of the intended buffer." } ], "exploits": [], "severity_range_score": "5.0 - 7.5", "exploitability": null, "weighted_severity": null, "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-dwyw-64yp-vygf" }