Description
Wireshark 1.4.x before 1.4.11 and 1.6.x before 1.6.5 does not properly perform certain string conversions, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted packet, related to epan/to_str.c.
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 | 1.6.5-1 | — |
| Debian 13 | wireshark | 1.6.5-1 | — |
| Debian 12 | wireshark | 1.6.5-1 | — |
| Debian 6.0 | wireshark | 1.2.11-6+squeeze6 | DSA-2395-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | wireshark +2 | 1.2.15-2.el6_2.1 | RHSA-2012:0509 |
| RHEL 5 | wireshark +1 | 1.0.15-5.el5 | RHSA-2013:0125 |
Advisories 3
- RHSA-2013:0125 Red Hat Security Advisory: wireshark security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2012:0509 Red Hat Security Advisory: wireshark security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2395-1 wireshark - buffer underflow Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://www.wireshark.org/security/wnpa-sec-2012-02.html
- 54425 third-party-advisory
- RHSA-2013:0125 vendor-advisory
- 48947 third-party-advisory
- [oss-security] 20120111 Re: CVE request: Wireshark multiple vulnerabilities mailing-list
- 1026507 vdb-entry
- 47494 third-party-advisory
- GLSA-201308-05 vendor-advisory
- http://anonsvn.wireshark.org/viewvc?view=revision&revision=40194
- oval:org.mitre.oval:def:15368 vdb-entry signature
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6634