CVE-2015-6242
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…
Does this matter?
Lower severity and a low EPSS score (2.81%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
- EPSS
- 2.81% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- oracle/solaris · wireshark/wireshark
- Source
- cve@mitre.org
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168837.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165509.html
- http://lists.opensuse.org/opensuse-updates/2015-10/msg00053.html
- http://www.debian.org/security/2015/dsa-3367
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
- http://www.securitytracker.com/id/1033272
- http://www.wireshark.org/security/wnpa-sec-2015-22.htmlVendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11373Issue Tracking
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=eaf1aad31e7c0a4908c20a42ae118c4dc8d474b6
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168837.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165509.html
- http://lists.opensuse.org/opensuse-updates/2015-10/msg00053.html
- http://www.debian.org/security/2015/dsa-3367
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
- http://www.securitytracker.com/id/1033272
- http://www.wireshark.org/security/wnpa-sec-2015-22.htmlVendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11373Issue Tracking
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=eaf1aad31e7c0a4908c20a42ae118c4dc8d474b6
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.