CVE-2015-6242

Name: CVE-2015-6242
Creator: NVD / NIST
Published: 2015-08-24T23:59:01.96+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.81%

Last modified Jun 17, 2026

CVE-2015-6242 is a vulnerability of currently unknown severity. The wmem_block_split_free_chunk function in epan/wmem/wmem_allocator_block.c in the wmem block allocator in the memory manager in Wireshark 1.12.x before 1.12.7 does not properly consider a certain case of multiple realloc operations that restore a memory chunk to its original size, which allows remote attackers to cause a denial of service (incorrect free operation and application crash) via a crafted packet.. EPSS estimates a 2.81% chance of exploitation in the next 30 days.

Description

The wmem_block_split_free_chunk function in epan/wmem/wmem_allocator_block.c in the wmem block allocator in the memory manager in Wireshark 1.12.x before 1.12.7 does not properly consider a certain case of multiple realloc operations that restore a memory chunk to its original size, which allows remote attackers to cause a denial of service (incorrect free operation and application crash) via a crafted packet.

Metrics

EPSS Probability

2.81%

84.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Oracle	Solaris	11.3
Wireshark	Wireshark	1.12.0
Wireshark	Wireshark	1.12.1
Wireshark	Wireshark	1.12.2
Wireshark	Wireshark	1.12.3
Wireshark	Wireshark	1.12.4
Wireshark	Wireshark	1.12.5
Wireshark	Wireshark	1.12.6

References

Timeline

Published: Aug 24, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6242?

How severe is CVE-2015-6242?

Severity scoring for CVE-2015-6242 is pending analysis. The EPSS model estimates a 2.81% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6242?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-6242?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST