Description
epan/dissectors/packet-pktc.c in the PKTC dissector in Wireshark 1.12.x before 1.12.11 and 2.0.x before 2.0.3 does not verify BER identifiers, which allows remote attackers to cause a denial of service (out-of-bounds write and application crash) 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 | 2.0.3+geed34f0-1 | — |
| Debian 13 | wireshark | 2.0.3+geed34f0-1 | — |
| Debian 12 | wireshark | 2.0.3+geed34f0-1 | — |
| Debian 8 | wireshark | 1.12.1+g01b65bf-4+deb8u6 | DSA-3585-1 |
| Debian 7 | wireshark | 1.12.1+g01b65bf-4+deb8u6~deb7u1 | DLA-497-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | wireshark | 2.6.3-1~ubuntu18.04.1 | — |
| Ubuntu 16.04 LTS | wireshark | 2.6.3-1~ubuntu16.04.1 | — |
| Ubuntu 14.04 LTS | wireshark | 2.6.3-1~ubuntu14.04.1 | — |
Advisories 2
- DLA-497-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3585-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- 1035685 vdb-entry
- DSA-3585 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- http://www.wireshark.org/security/wnpa-sec-2016-22.html
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=4cdc9eeba58f866bd5f273e9c5b3876857a7a4bf
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12206