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Fencer Intel
high 7.5

CVE-2017-17935 json

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 re…

published 8y ago modified 4mo ago also EUVD-2017-9078

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.0%
EPSS 3.0% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

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.

Patch / fix

  • wireshark Debian 14, Debian 13, Debian 12 2.4.4-1

debian advisories DEBIAN-CVE-2017-17935

  • wireshark Ubuntu 14.04 LTS 2.6.3-1~ubuntu14.04.1
  • wireshark Ubuntu 16.04 LTS 2.6.3-1~ubuntu16.04.1
  • wireshark Ubuntu 18.04 LTS 2.6.3-1~ubuntu18.04.1

ubuntu advisories UBUNTU-CVE-2017-17935

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • wireshark SLES for SAP 12 SP3, SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2 +6 more 2.2.12-48.18.1
  • wireshark SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 2.2.12-40.17.1

suse advisories SUSE-SU-2018:0191-1SUSE-SU-2018:0179-1

Is CVE-2017-17935 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-17935 updated cvss 4.3

Wireshark: denial of service in the File_read_line function in epan/wslua/wslua_file.c

  • Red Hat Enterprise Linux 5 wireshark Red Hat Enterprise Linux 6 wireshark, wireshark-gnome Red Hat Enterprise Linux 7 wireshark, wireshark-gnome
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 8 wireshark, wireshark-cli
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.96% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.