{ "schema_version": "1.4.0", "id": "GHSA-cj8j-r7q8-xg4f", "modified": "2022-05-14T00:58:02Z", "published": "2022-05-14T00:58:02Z", "aliases": [ "CVE-2018-1000005" ], "details": "libcurl 7.49.0 to and including 7.57.0 contains an out bounds read in code handling HTTP/2 trailers. It was reported (https://github.com/curl/curl/pull/2231) that reading an HTTP/2 trailer could mess up future trailers since the stored size was one byte less than required. The problem is that the code that creates HTTP/1-like headers from the HTTP/2 trailer data once appended a string like `:` to the target buffer, while this was recently changed to `: ` (a space was added after the colon) but the following math wasn't updated correspondingly. When accessed, the data is read out of bounds and causes either a crash or that the (too large) data gets passed to client write. This could lead to a denial-of-service situation or an information disclosure if someone has a service that echoes back or uses the trailers for something.", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H" } ], "affected": [], "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000005" }, { "type": "WEB", "url": "https://github.com/curl/curl/pull/2231" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2019:1543" }, { "type": "WEB", "url": "https://curl.haxx.se/docs/adv_2018-824a.html" }, { "type": "WEB", "url": "https://usn.ubuntu.com/3554-1" }, { "type": "WEB", "url": "https://www.debian.org/security/2018/dsa-4098" }, { "type": "WEB", "url": "http://www.securitytracker.com/id/1040273" } ], "database_specific": { "cwe_ids": [ "CWE-125" ], "severity": "CRITICAL", "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2018-01-24T22:29:00Z" } }