CVE-2011-3188
What it is
The (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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data tampering, service disruption.
- Exploit odds
- 5.0% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 5.0% in the next 30 days (EPSS).
- Severity: 9.1 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 5.0% · EPSS, next 30 days
- Record status
- Modified
Affected
- Linux Kernel < 3.1
- Redhat Enterprise Linux 4.0
- f5 Arx ≤ 6.4.0
- f5 big-ip Access Policy Manager ≤ 10.2.4
- f5 big-ip Access Policy Manager ≤ 11.1.0
- f5 big-ip Analytics ≤ 11.1.0
- f5 big-ip Application Security Manager ≤ 10.2.4
- f5 big-ip Application Security Manager ≤ 11.1.0
Attack profile CVSS 3.1 · 9.1
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2011-3188.md and follow it. Check whether this project is affected by CVE-2011-3188. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
- http://www.openwall.com/lists/oss-security/2011/08/23/2
- https://bugzilla.redhat.com/show_bug.cgi?id=732658
- https://github.com/torvalds/linux/commit/6e5714eaf77d79ae1c8b47e3e040ff5411b717ec
- https://github.com/torvalds/linux/commit/bc0b96b54a21246e377122d54569eef71cec535f
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
- http://www.openwall.com/lists/oss-security/2011/08/23/2
- https://bugzilla.redhat.com/show_bug.cgi?id=732658
- https://github.com/torvalds/linux/commit/6e5714eaf77d79ae1c8b47e3e040ff5411b717ec
- https://github.com/torvalds/linux/commit/bc0b96b54a21246e377122d54569eef71cec535f
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6e5714eaf77d79ae1c8b47e3e040ff5411b717ec
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bc0b96b54a21246e377122d54569eef71cec535f
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
- http://www.openwall.com/lists/oss-security/2011/08/23/2
- https://bugzilla.redhat.com/show_bug.cgi?id=732658
- https://github.com/torvalds/linux/commit/6e5714eaf77d79ae1c8b47e3e040ff5411b717ec
- https://github.com/torvalds/linux/commit/bc0b96b54a21246e377122d54569eef71cec535f
- https://support.f5.com/csp/article/K15301?utm_source=f5support&%3Butm_medium=RSS
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6e5714eaf77d79ae1c8b47e3e040ff5411b717ec
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bc0b96b54a21246e377122d54569eef71cec535f
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
- http://www.openwall.com/lists/oss-security/2011/08/23/2
- https://bugzilla.redhat.com/show_bug.cgi?id=732658
- https://github.com/torvalds/linux/commit/6e5714eaf77d79ae1c8b47e3e040ff5411b717ec
- https://github.com/torvalds/linux/commit/bc0b96b54a21246e377122d54569eef71cec535f
- https://support.f5.com/csp/article/K15301?utm_source=f5support&%3Butm_medium=RSS