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.
CVSS Details
- CVSS 3.1 Base Score: 6.2
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade wireshark | Sep 20, 2017 | Aug 24, 2015 |
| Debian | — | Upgrade wireshark | Jul 30, 2024 | Aug 24, 2015 |
| Freebsd | — | Upgrade tsharkUpgrade wireshark-liteUpgrade tshark-liteUpgrade wiresharkUpgrade wireshark-qt5 | Dec 10, 2025 | Sep 8, 2015 |
| Oracle Solaris | — | Upgrade diagnostic/wireshark/wireshark-common to version 1.12.7-0.175.3.1.0.3.0 on Solaris 11.3Upgrade diagnostic/wireshark to version 1.12.7-0.175.3.1.0.3.0 on Solaris 11.3Upgrade diagnostic/wireshark/tshark to version 1.12.7-0.175.3.1.0.3.0 on Solaris 11.3 | May 29, 2017 | Aug 24, 2015 |
| Suse | — | Upgrade libwscodecs1Upgrade libwsutil11Upgrade libwiretap7Upgrade wiresharkUpgrade libwireshark9Upgrade libwsutil8Upgrade libwiretap10Upgrade wireshark-develUpgrade libwireshark13Upgrade wireshark-ui-qt | Dec 18, 2015 | Aug 24, 2015 |
| Ubuntu | — | Upgrade wireshark | Nov 19, 2024 | Aug 24, 2015 |
| Wireshark | — | Upgrade to Wireshark version 1.12.7 | Apr 25, 2018 | Aug 24, 2015 |
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