CVE-2011-1770

Publication date 24 June 2011

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Integer underflow in the dccp_parse_options function (net/dccp/options.c) in the Linux kernel before 2.6.33.14 allows remote attackers to cause a denial of service via a Datagram Congestion Control Protocol (DCCP) packet with an invalid feature options length, which triggers a buffer over-read.

From the Ubuntu Security Team

Dan Rosenberg discovered that the DCCP stack did not correctly handle certain packet structures. A remote attacker could exploit this to crash the system, leading to a denial of service.

Status

Package Ubuntu Release Status
linux 11.04 natty
Fixed 2.6.38-10.44
10.10 maverick
Fixed 2.6.35-30.57
10.04 LTS lucid
Fixed 2.6.32-33.64
8.04 LTS hardy
Not affected
linux-ec2 11.04 natty Not in release
10.10 maverick Ignored end of life
10.04 LTS lucid
Fixed 2.6.32-317.32
8.04 LTS hardy Not in release
linux-fsl-imx51 11.04 natty Not in release
10.10 maverick Not in release
10.04 LTS lucid
Fixed 2.6.31-610.27
8.04 LTS hardy Not in release
linux-lts-backport-maverick 11.04 natty Not in release
10.10 maverick Not in release
10.04 LTS lucid
Fixed 2.6.35-30.57~lucid1
8.04 LTS hardy Not in release
linux-lts-backport-natty 11.04 natty Not in release
10.10 maverick Not in release
10.04 LTS lucid
Not affected
8.04 LTS hardy Not in release
linux-mvl-dove 11.04 natty Not in release
10.10 maverick
Fixed 2.6.32-417.34
10.04 LTS lucid
Fixed 2.6.32-217.34
8.04 LTS hardy Not in release
linux-ti-omap4 11.04 natty
Fixed 2.6.38-1209.15
10.10 maverick
Fixed 2.6.35-903.23
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
linux

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-1205-1
    • Linux kernel (Maverick backport) vulnerabilities
    • 13 September 2011
    • USN-1202-1
    • Linux kernel (OMAP4) vulnerabilities
    • 13 September 2011
    • USN-1168-1
    • Linux kernel vulnerabilities
    • 15 July 2011
    • USN-1162-1
    • Linux kernel vulnerabilities (Marvell Dove)
    • 29 June 2011
    • USN-1204-1
    • Linux kernel (i.MX51) vulnerabilities
    • 13 September 2011
    • USN-1167-1
    • Linux kernel vulnerabilities
    • 13 July 2011
    • USN-1201-1
    • Linux kernel vulnerabilities
    • 13 September 2011
    • USN-1212-1
    • Linux kernel (OMAP4) vulnerabilities
    • 21 September 2011
    • USN-1161-1
    • Linux kernel vulnerabilities (EC2)
    • 13 July 2011
    • USN-1159-1
    • Linux kernel vulnerabilities (Marvell Dove)
    • 13 July 2011

Other references