CVE-2021-28906

{"id": "CVE-2021-28906", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2021-05-20T19:15:07.747", "references": [{"url": "https://github.com/CESNET/libyang/issues/1455", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://security.gentoo.org/glsa/202107-54", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-252"}]}], "descriptions": [{"lang": "en", "value": "In function read_yin_leaf() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NULL. In some cases, it can be NULL, which leads to the operation of retval->ext[r]->flags that results in a crash."}, {"lang": "es", "value": "En la funci\u00f3n read_yin_leaf() en libyang versiones anteriores a v1.0.225 incluy\u00e9ndola, no comprueba si el valor de retval-)ext [r] es NULL.&#xa0;En algunos casos, puede ser NULL, lo que conlleva a la operaci\u00f3n de retval-)ext[r]-)flags que resulta en un bloqueo"}], "lastModified": "2022-04-06T17:35:28.933", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6CFE711D-6C8F-4F0F-B53E-BB952DC1FF39", "versionEndIncluding": "1.0.225"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}