CVE-2018-20712

A heap-based buffer over-read exists in the function d_expression_1 in cp-demangle.c in GNU libiberty, as distributed in GNU Binutils 2.31.1. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by c++filt.

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector : AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://www.securityfocus.com/bid/106563	Third Party Advisory VDB Entry
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88629	Exploit Issue Tracking Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=24043	Exploit Issue Tracking Third Party Advisory
https://support.f5.com/csp/article/K38336243	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:binutils:2.31.1:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-01-15 00:29

Updated : 2019-10-03 00:03

NVD link : CVE-2018-20712

Mitre link : CVE-2018-20712

CVE.ORG link : CVE-2018-20712

JSON object : View

Products Affected

gnu

binutils

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2018-20712", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2019-01-15T00:29:00.257", "references": [{"url": "http://www.securityfocus.com/bid/106563", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88629", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=24043", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://support.f5.com/csp/article/K38336243", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "A heap-based buffer over-read exists in the function d_expression_1 in cp-demangle.c in GNU libiberty, as distributed in GNU Binutils 2.31.1. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by c++filt."}, {"lang": "es", "value": "Existe una sobrelectura de b\u00fafer basada en memoria din\u00e1mica (heap) en la funci\u00f3n d_expression_1 en cp-demangle.c en GNU libiberty, tal y como se distribuye en GNU Binutils 2.31.1. Una entrada manipulada puede causar fallos de segmentaci\u00f3n, conduciendo a una denegaci\u00f3n de servicio (DoS), tal y como queda demostrado con c++filt."}], "lastModified": "2019-10-03T00:03:26.223", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gnu:binutils:2.31.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A8A2A091-F7E8-438C-8DE8-788A1DD5D11D"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}