wireshark: memory manager crash (wnpa-sec-2015-22)
Published Aug 24, 2015
4.3
MEDIUMCVSS 2.0
EPSS 2.81%
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.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
wireshark
Not affected
Red Hat Enterprise Linux 6
wireshark
Not affected
Red Hat Enterprise Linux 7
wireshark
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | wireshark | Not affected | n/a |
| Red Hat Enterprise Linux 6 | wireshark | Not affected | n/a |
| Red Hat Enterprise Linux 7 | wireshark | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of wireshark as shipped with Red Hat Enterprise Linux 5, 6 and 7.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.81% (0.02814) | 86.05th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.81% (0.02814) | 84.64th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.45% (0.00446) | 61.36th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.29% (0.00290) | 69.88th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.29% (0.00290) | 68.15th | v3 (v2023.03.01) |
| Jun 16, 2023 | 0.29% (0.00290) | 64.60th | v3 (v2023.03.01) |
| Apr 11, 2023 | 0.25% (0.00251) | 61.35th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.23% (0.00234) | 59.67th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.97% (0.01974) | 78.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.97% (0.01974) | 77.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.97% (0.01974) | 56.20th | v2 (v2022.01.01) |
References (14)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168837.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165509.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-updates/2015-10/msg00053.html vendor-advisoryx_refsource_SUSE
- http://www.debian.org/security/2015/dsa-3367 vendor-advisoryx_refsource_DEBIAN
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html x_refsource_CONFIRMThird Party Advisory
- http://www.securitytracker.com/id/1033272 vdb-entryx_refsource_SECTRACK
- http://www.wireshark.org/security/wnpa-sec-2015-22.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2015-6242 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11373 x_refsource_CONFIRMIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1253353 Issue Tracking
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=eaf1aad31e7c0a4908c20a42ae118c4dc8d474b6 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-6242
- https://www.cve.org/CVERecord?id=CVE-2015-6242
- https://www.wireshark.org/security/wnpa-sec-2015-22
Change history (0)
No recorded changes yet.