CVE-2011-3188

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Summary

CVECVE-2011-3188
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-05-24 23:55:02 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe (1) IPv4 and (2) IPv6 implementations in the Linux kernel before 3.1 use a modified MD4 algorithm to generate sequence numbers and Fragment Identification values, which makes it easier for remote attackers to cause a denial of service (disrupted networking) or hijack network sessions by predicting these values and sending crafted packets.

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Problem Types: NVD-CWE-Other | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
2.0[email protected]Primary6.4AV:N/AC:L/Au:N/C:N/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
Partial

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application F5 Arx All All All All
Application F5 Big-ip Access Policy Manager All All All All
Application F5 Big-ip Access Policy Manager All All All All
Application F5 Big-ip Analytics All All All All
Application F5 Big-ip Application Security Manager All All All All
Application F5 Big-ip Application Security Manager All All All All
Application F5 Big-ip Edge Gateway All All All All
Application F5 Big-ip Edge Gateway All All All All
Application F5 Big-ip Global Traffic Manager All All All All
Application F5 Big-ip Global Traffic Manager All All All All
Application F5 Big-ip Link Controller All All All All
Application F5 Big-ip Link Controller All All All All
Application F5 Big-ip Local Traffic Manager All All All All
Application F5 Big-ip Local Traffic Manager All All All All
Application F5 Big-ip Protocol Security Module All All All All
Application F5 Big-ip Protocol Security Module All All All All
Application F5 Big-ip Wan Optimization Manager All All All All
Application F5 Big-ip Wan Optimization Manager All All All All
Application F5 Big-ip Webaccelerator All All All All
Application F5 Big-ip Webaccelerator All All All All
Application F5 Enterprise Manager 3.0.0 All All All
Application F5 Enterprise Manager All All All All
Application F5 Firepass 7.0.0 All All All
Application F5 Firepass All All All All
Operating System Linux Linux Kernel All All All All
Operating System Redhat Enterprise Linux 4.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
git.kernel.org af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
'[security bulletin] HPSBGN02970 rev.1 - HP Rapid Deployment Pack (RDP) or HP Insight Control Server ' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info Mailing List, Third Party Advisory
oss-security - Re: CVE request: kernel: change in how tcp seq numbers are generated af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Patch, Third Party Advisory
crypto: Move md5_transform to lib/md5.c · torvalds/linux@bc0b96b · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
Bug 732658 – CVE-2011-3188 kernel: net: improve sequence number generation af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1 af854a3a-2127-422b-91ae-364da2661108 www.kernel.org Mailing List, Patch, Vendor Advisory
support.f5.com/csp/article/K15301 af854a3a-2127-422b-91ae-364da2661108 support.f5.com
net: Compute protocol sequence numbers and fragment IDs using MD5. · torvalds/linux@6e5714e · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CONFIRM:https://support.f5.com/csp/article/K15301?utm_source=f5support&utm_medium=RSS MITRE support.f5.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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