CVE-2016-9586

curl before version 7.52.0 is vulnerable to a buffer overflow when doing a large floating point output in libcurl's implementation of the printf() functions. If there are any application that accepts a format string from the outside without necessary input filtering, it could allow remote attacks.

CVSS v3.0 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3.0 : HIGH

V3 Legend

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

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/curl/curl/commit/curl-7_51_0-162-g3ab3c16	Patch Third Party Advisory
https://curl.haxx.se/docs/adv_20161221A.html	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9586	Issue Tracking Third Party Advisory
https://security.gentoo.org/glsa/201701-47	Third Party Advisory
http://www.securitytracker.com/id/1037515	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/95019	Third Party Advisory VDB Entry
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html
https://access.redhat.com/errata/RHSA-2018:3558
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E

Configurations

Configuration 1 (hide)

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*

Information

Published : 2018-04-23 11:29

Updated : 2021-06-29 08:15

NVD link : CVE-2016-9586

Mitre link : CVE-2016-9586

JSON object : View

CWE

CWE-122

Heap-based Buffer Overflow

Products Affected

haxx

curl

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/curl/curl/commit/curl-7_51_0-162-g3ab3c16", "name": "https://github.com/curl/curl/commit/curl-7_51_0-162-g3ab3c16", "tags": ["Patch", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://curl.haxx.se/docs/adv_20161221A.html", "name": "https://curl.haxx.se/docs/adv_20161221A.html", "tags": ["Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9586", "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9586", "tags": ["Issue Tracking", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://security.gentoo.org/glsa/201701-47", "name": "GLSA-201701-47", "tags": ["Third Party Advisory"], "refsource": "GENTOO"}, {"url": "http://www.securitytracker.com/id/1037515", "name": "1037515", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "SECTRACK"}, {"url": "http://www.securityfocus.com/bid/95019", "name": "95019", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html", "name": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html", "tags": [], "refsource": "CONFIRM"}, {"url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html", "name": "[debian-lts-announce] 20181106 [SECURITY] [DLA 1568-1] curl security update", "tags": [], "refsource": "MLIST"}, {"url": "https://access.redhat.com/errata/RHSA-2018:3558", "name": "RHSA-2018:3558", "tags": [], "refsource": "REDHAT"}, {"url": "https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E", "name": "[bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8", "tags": [], "refsource": "MLIST"}, {"url": "https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E", "name": "[bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8", "tags": [], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "curl before version 7.52.0 is vulnerable to a buffer overflow when doing a large floating point output in libcurl's implementation of the printf() functions. If there are any application that accepts a format string from the outside without necessary input filtering, it could allow remote attacks."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-122"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2016-9586", "ASSIGNER": "secalert@redhat.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}}, "publishedDate": "2018-04-23T18:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "7.52.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-06-29T15:15Z"}

8.1 /10