Vulnerability Monitor

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CVE-2015-5879

XNU in the kernel in Apple iOS before 9 does not properly validate the headers of TCP packets, which allows remote attackers to bypass the sequence-number protection mechanism and cause a denial of service (TCP connection disruption) via a crafted header.

Published

2015-09-18T12:00:18.653

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	apple	iphone_os	≤ 8.4.1	Yes
Operating System	apple	mac_os_x	≤ 10.10.5	Yes

References

http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html Vendor Advisory ([email protected])
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/76764 ([email protected])
http://www.securitytracker.com/id/1033609 ([email protected])
https://support.apple.com/HT205212 Vendor Advisory ([email protected])
https://support.apple.com/HT205267 Vendor Advisory ([email protected])
http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/76764 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1033609 (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/HT205212 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/HT205267 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)