24576 : NetBSD elf_load_file() Malformed ELF Interpreter Local DoS
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Timeline

Disclosure Date
2006-03-29

Description

NetBSD contains a flaw that may allow a local denial of service. The issue is triggered when the elf_load_file() function dereferences a NULL pointer. The NULL pointer dereference occurs when a malicious user creates an elf interpreter that lacks a PT_LOAD section in its header. This will result in loss of availability for the platform.

Classification

Location: Local Access Required
Attack Type: Input Manipulation
Impact: Loss of Availability

Solution

Obtain fixed kernel sources, rebuild and install the new kernel, and reboot the system.

The fixed source may be obtained from the NetBSD CVS repository.

Products

The NetBSD Foundation, Inc.
NetBSD
2.0
2.0.x
2.1
3.0

References

Credit

  • Eric Haszlakiewicz -

CVSSv2 Score

CVSSv2 Base Score = 4.9
Source: nvd.nist.gov | Generated: 2006-04-03 | Disagree?

Access_vector_0 Access_complexity_2 Authentication_2 Confidentiality_impact_0 Integrity_impact_0 Availability_impact_2

Comments

No Comments.

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