Description
The File_read_line function in epan/wslua/wslua_file.c in Wireshark through 2.2.11 does not properly strip '\n' characters, which allows remote attackers to cause a denial of service (buffer underflow and application crash) via a crafted packet that triggers the attempted processing of an empty line.
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 | 2.4.4-1 | — |
| Debian 13 | wireshark | 2.4.4-1 | — |
| Debian 12 | wireshark | 2.4.4-1 | — |
| Debian 8 | wireshark | 1.12.1+g01b65bf-4+deb8u16 | DLA-1634-1 |
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 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | wireshark | 2.2.12-48.18.1 | SUSE-SU-2018:0191-1 |
| SLES 12 SP2 | wireshark | 2.2.12-48.18.1 | SUSE-SU-2018:0191-1 |
| SLES 11 SP4 | wireshark | 2.2.12-40.17.1 | SUSE-SU-2018:0179-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | wireshark | 2.2.12-48.18.1 | SUSE-SU-2018:0191-1 |
| SLES for SAP 12 SP2 | wireshark | 2.2.12-48.18.1 | SUSE-SU-2018:0191-1 |
| SLES for SAP 11 SP4 | wireshark | 2.2.12-40.17.1 | SUSE-SU-2018:0179-1 |
Advisories 3
- DLA-1634-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2018:0191-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0179-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14295
- https://code.wireshark.org/review/#/c/24997/
- [debian-lts-announce] 20190115 [SECURITY] [DLA 1634-1] wireshark security update mailing-list
- 102311 vdb-entry
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=137ab7d5681486c6d6cc8faac4300b7cd4ec0cf1