CVE-2017-7482

In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.

CVSS v3 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://seclists.org/oss-sec/2017/q2/602	Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/99299	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038787	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:0641	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482	Issue Tracking Patch Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0	Patch Vendor Advisory
https://www.debian.org/security/2017/dsa-3927	Third Party Advisory
https://www.debian.org/security/2017/dsa-3945	Third Party Advisory
http://seclists.org/oss-sec/2017/q2/602	Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/99299	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038787	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:0641	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482	Issue Tracking Patch Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0	Patch Vendor Advisory
https://www.debian.org/security/2017/dsa-3927	Third Party Advisory
https://www.debian.org/security/2017/dsa-3945	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:redhat:enterprise_mrg:2.0:::::::*

History

21 Nov 2024, 03:31

Type	Values Removed	Values Added
References	~~() http://seclists.org/oss-sec/2017/q2/602 - Mailing List, Patch, Third Party Advisory~~	() http://seclists.org/oss-sec/2017/q2/602 - Mailing List, Patch, Third Party Advisory
References	~~() http://www.securityfocus.com/bid/99299 - VDB Entry, Third Party Advisory~~	() http://www.securityfocus.com/bid/99299 - Third Party Advisory, VDB Entry
References	~~() http://www.securitytracker.com/id/1038787 - Third Party Advisory, VDB Entry~~	() http://www.securitytracker.com/id/1038787 - Third Party Advisory, VDB Entry
References	~~() https://access.redhat.com/errata/RHSA-2019:0641 - Third Party Advisory~~	() https://access.redhat.com/errata/RHSA-2019:0641 - Third Party Advisory
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482 - Issue Tracking, Patch, Third Party Advisory~~	() https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482 - Issue Tracking, Patch, Third Party Advisory
References	~~() https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0 - Patch, Vendor Advisory~~	() https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0 - Patch, Vendor Advisory
References	~~() https://www.debian.org/security/2017/dsa-3927 - Third Party Advisory~~	() https://www.debian.org/security/2017/dsa-3927 - Third Party Advisory
References	~~() https://www.debian.org/security/2017/dsa-3945 - Third Party Advisory~~	() https://www.debian.org/security/2017/dsa-3945 - Third Party Advisory

Information

Published : 2018-07-30 14:29

Updated : 2024-11-21 03:31

NVD link : CVE-2017-7482

Mitre link : CVE-2017-7482

CVE.ORG link : CVE-2017-7482

JSON object : View

Products Affected

redhat

enterprise_mrg

debian

debian_linux

linux

linux_kernel

CWE

CWE-190

Integer Overflow or Wraparound

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This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation."}, {"lang": "es", "value": "en el kernel de Linux en versiones anteriores a la 4.12, los tickets de Kerberos 5 descifrados al emplear las claves RXRPC de forma incorrecta asumen el tama\u00f1o de un campo. Esto podr\u00eda conducir a un wrapping de la variable que mantiene el tama\u00f1o y en que el puntero de datos vaya m\u00e1s all\u00e1 final del b\u00fafer. Esto podr\u00eda conducir a una corrupci\u00f3n de memoria y a un posible escalado de privilegios."}], "lastModified": "2024-11-21T03:31:59.407", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "429C1A9C-998E-457D-8DE5-1CCBA72086E8", "versionEndExcluding": "3.2.90"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7AEC5142-D74C-40FD-9F20-286B9566A40E", "versionEndExcluding": "3.10.108", "versionStartIncluding": "3.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "63252E95-BB44-4171-81B3-530571754ACD", "versionEndExcluding": "3.16.45", "versionStartIncluding": "3.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DFCD44DB-A537-4F77-B2DC-E0F3EF3FC431", "versionEndExcluding": "3.18.59", "versionStartIncluding": "3.17"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5F6B255F-0933-4983-B3F6-AD5B128A8F04", "versionEndExcluding": "4.1.43", "versionStartIncluding": "3.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "210DE424-BB18-453F-8EC0-528DB62330A3", "versionEndExcluding": "4.4.75", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "756E8245-FDA8-4533-839F-003E1102C971", "versionEndExcluding": "4.9.35", "versionStartIncluding": "4.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EC396324-C7F1-4F5F-8C7B-1F084DF92D5B", "versionEndExcluding": "4.11.8", "versionStartIncluding": "4.10"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"}, {"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}, {"criteria": "cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C60FA8B1-1802-4522-A088-22171DCF7A93"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}

7.8 /10