Description
epan/dissectors/packet-websocket.c in the WebSocket dissector in Wireshark 1.12.x before 1.12.5 uses a recursive algorithm, which allows remote attackers to cause a denial of service (CPU consumption) via a crafted packet.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | wireshark | 1.12.5+g5819e5b-1 | — |
| Debian 13 | wireshark | 1.12.5+g5819e5b-1 | — |
| Debian 12 | wireshark | 1.12.5+g5819e5b-1 | — |
| Debian 8 | wireshark | 1.12.1+g01b65bf-4+deb8u1 | DSA-3277-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | wireshark +2 | 1.10.14-7.el7 | RHSA-2015:2393 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | wireshark | 2.2.2-1.1 | openSUSE-SU-2024:10199-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | wireshark +2 | 1.10.14-7.0.1.el7 | ELSA-2015-2393 |
Advisories 4
- RHSA-2015:2393 Red Hat Security Advisory: wireshark security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-3277-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10199-1 wireshark-2.2.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2015-2393 Moderate: wireshark security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 23, 2015
References
- 74629 vdb-entry
- DSA-3277 vendor-advisory
- http://www.wireshark.org/security/wnpa-sec-2015-13.html
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=10989
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- GLSA-201510-03 vendor-advisory
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=4ee6bcbd2e03a25f1e6b0239558d9edeaf8040c0