CVE-2022-34299

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:libdwarf_project:libdwarf:0.4.0:*:*:*:*:*:*:*", "matchCriteriaId": "448D8623-0083-42B9-A9D1-60A5BF2F6DE5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "There is a heap-based buffer over-read in libdwarf 0.4.0. This issue is related to dwarf_global_formref_b."}, {"lang": "es", "value": "Se presenta una lectura excesiva del b\u00fafer en la regi\u00f3n heap de la memoria en libdwarf versi\u00f3n 0.4.0. Este problema est\u00e1 relacionado con dwarf_global_formref_b"}], "id": "CVE-2022-34299", "lastModified": "2026-06-17T04:50:04.330", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-06-23T17:15:18.410", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/davea42/libdwarf-code/commit/7ef09e1fc9ba07653dd078edb2408631c7969162"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://github.com/davea42/libdwarf-code/issues/119"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/davea42/libdwarf-code/commit/7ef09e1fc9ba07653dd078edb2408631c7969162"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://github.com/davea42/libdwarf-code/issues/119"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "libdwarf: heap buffer over-read in dwarf_global_formref_b() in dwarf_form.c", "id": "2102019", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2102019"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H", "status": "draft"}, "cwe": "CWE-126", "details": ["There is a heap-based buffer over-read in libdwarf 0.4.0. This issue is related to dwarf_global_formref_b.", "A buffer-overflow vulnerability was found in libdwarf's dwarf_global_formref_b() function in dwarf_form.c. A carefully crafted `.debug_info` causes libdwarf to read outside a buffer containing a Dwarf_Sig8 symbolic reference. This issue can cause a segmentation violation or other major error, terminating the calling application and resulting in a denial of service."], "name": "CVE-2022-34299", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "libdwarf", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "libdwarf", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2022-06-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-34299\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-34299"], "statement": "The bug has been present since DWARF4 when DW_FORM_ref_sig8 was added to libdwarf. But, in our code-base, we cannot handle this functionality yet. There is no presence of vulnerable code in our code-base. Hence, versions of libdwarf shipped with Red Hat Enterprise Linux 7 & 8 are not affected by this flaw.", "threat_severity": "Moderate"}

{}