CVE-2014-8768 - Integer Underflow (Wrap or Wraparound)

Severity

50%

Complexity

99%

Confidentiality

48%

Multiple Integer underflows in the geonet_print function in tcpdump 4.5.0 through 4.6.2, when in verbose mode, allow remote attackers to cause a denial of service (segmentation fault and crash) via a crafted length value in a Geonet frame.

Multiple Integer underflows in the geonet_print function in tcpdump 4.5.0 through 4.6.2, when in verbose mode, allow remote attackers to cause a denial of service (segmentation fault and crash) via a crafted length value in a Geonet frame.

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Demo Examples

Integer Underflow (Wrap or Wraparound)

CWE-191

The following example subtracts from a 32 bit signed integer.


               
}
return 0;

The example has an integer underflow. The value of i is already at the lowest negative value possible, so after subtracting 1, the new value of i is 2147483647.

Overview

First reported 10 years ago

2014-11-20 17:50:00

Last updated 6 years ago

2018-10-30 16:27:00

Affected Software

OpenSUSE 13.1

13.1

OpenSUSE 13.2

13.2

Canonical Ubuntu Linux 10.04 LTS

10.04

Canonical Ubuntu Linux 12.04 LTS

12.04

Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)

14.04

Canonical Ubuntu Linux 14.10

14.10

Oracle Solaris 11.2

11.2

References

openSUSE-SU-2015:0284

Third Party Advisory

http://packetstormsecurity.com/files/129156/tcpdump-4.6.2-Geonet-Denial-Of-Service.html

Exploit, Third Party Advisory, VDB Entry

20141118 CVE-2014-8768 tcpdump denial of service in verbose mode using malformed Geonet payload

Exploit, Third Party Advisory, VDB Entry

35359

Exploit, Third Party Advisory, VDB Entry

http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html

Third Party Advisory

20141118 CVE-2014-8768 tcpdump denial of service in verbose mode using malformed Geonet payload

71155

Third Party Advisory, VDB Entry

USN-2433-1

Third Party Advisory

tpcdump-cve20148768-dos(98766)

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