{"id":"CVE-2022-30295","aliases":["AZL-9702","DEBIAN-CVE-2022-30295","EUVD-2022-52246","GHSA-gv7v-mf7r-p93f"],"status":"published","title":"uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may...","description":"uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may lead to DNS cache poisoning. This is related to a reset of a value to 0x2.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.11205,"percentile":0.9599,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-330"],"published":"2022-05-06T04:43:47Z","modified":"2026-10-28T02:30:36Z","fixes":[{"ecosystem":"Azure Linux:2","package":"uclibc-ng","fixed_in":["1.0.41-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:2","package":"uclibc-ng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.41-1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"uclibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.35-1","1.0.54-1"]},{"source":"osv","ecosystem":"Debian:13","package":"uclibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.35-1","1.0.54-1"]},{"source":"osv","ecosystem":"Debian:14","package":"uclibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.35-1","1.0.54-1"]}],"products":[{"vendor":"uclibc","product":"uclibc"},{"vendor":"uclibc-ng_project","product":"uclibc-ng"}],"references":[{"url":"https://www.nozominetworks.com/blog/nozomi-networks-discovers-unpatched-dns-bug-in-popular-c-standard-library-putting-iot-at-risk/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","article"]},{"url":"https://www.kb.cert.org/vuls/id/473698","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Third Party Advisory","US Government Resource","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-30295","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-gv7v-mf7r-p93f"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/30xxx/CVE-2022-30295.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2022-30295","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2022-30295","description":"uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may lead to DNS cache poisoning. This is related to a reset of a value to 0x2.","status":"published","published":"2022-05-06T04:43:47Z","modified":"2024-08-03T06:48:34.838Z","updated_at":"2026-11-02T14:34:31.184134Z"}],"euvd":[{"id":"EUVD-2022-52246","description":"uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may lead to DNS cache poisoning. This is related to a reset of a value to 0x2.","status":"published","published":"2022-05-06T04:43:47Z","modified":"2024-08-03T06:48:34Z","updated_at":"2026-11-03T03:25:36.95433Z"}],"ghsa":[{"id":"GHSA-gv7v-mf7r-p93f","title":"uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may...","description":"uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may lead to DNS cache poisoning. This is related to a reset of a value to 0x2.","status":"published","published":"2022-05-07T00:00:48Z","modified":"2023-02-01T05:02:07Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T14:49:51.128354Z"}],"nvd":[{"id":"CVE-2022-30295","description":"uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may lead to DNS cache poisoning. This is related to a reset of a value to 0x2.","status":"published","published":"2022-05-06T05:15:07.213Z","modified":"2026-06-17T04:43:25.917Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:H/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-330"],"updated_at":"2026-11-02T14:07:19.51203Z"}],"osv":[{"id":"AZL-9702","title":"CVE-2022-30295 affecting package uclibc-ng for versions less than 1.0.41-1","description":"uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may lead to DNS cache poisoning. This is related to a reset of a value to 0x2.","status":"published","published":"2022-05-06T05:15:07Z","modified":"2026-04-21T04:35:07.388285Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:12.313414Z"},{"id":"DEBIAN-CVE-2022-30295","description":"uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may lead to DNS cache poisoning. This is related to a reset of a value to 0x2.","status":"published","published":"2022-05-06T05:15:07.213Z","modified":"2026-11-03T08:04:07.772822613Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T08:23:07.763774Z"},{"id":"CVE-2022-30295","description":"uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may lead to DNS cache poisoning. This is related to a reset of a value to 0x2.","status":"published","published":"2022-05-06T04:43:47Z","modified":"2026-10-28T02:30:36.184673096Z","updated_at":"2026-11-02T15:44:25.516981Z"}]}}