Description
The pinger in Squid 3.x before 3.4.8 allows remote attackers to obtain sensitive information or cause a denial of service (crash) via a crafted (1) ICMP or (2) ICMP6 packet size.
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 | squid | 4.1-1 | — |
| Debian 13 | squid | 4.1-1 | — |
| Debian 12 | squid | 4.1-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | squid3 | 3.3.8-1ubuntu6.2 | USN-2422-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | squid3 | 3.1.23-8.16.30.1 | SUSE-SU-2016:2089-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 11 SP4 | squid3 | 3.1.23-8.16.30.1 | SUSE-SU-2016:2089-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | squid | 3.5.22-1.1 | openSUSE-SU-2024:10307-1 |
Advisories 3
- USN-2422-1 squid3 vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2016:2089-1 Security update for squid3 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10307-1 squid-3.5.22-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- http://www.squid-cache.org/Advisories/SQUID-2014_4.txt
- SUSE-SU-2016:1996 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
- 60242 third-party-advisory
- https://bugzilla.novell.com/show_bug.cgi?id=891268
- [oss-security] 20140916 Re: Re: CVE-Request: squid pinger remote DoS mailing-list
- [oss-security] 20140909 CVE-Request: squid pinger remote DoS mailing-list
- 70022 vdb-entry
- USN-2422-1 vendor-advisory
- SUSE-SU-2016:2089 vendor-advisory
- [oss-security] 20140922 Re: CVE-Request: squid pinger remote DoS mailing-list