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Vulnerability record · CVE-2010-0308 · published 3 February 2010

CVE-2010-0308: Squid-cache squid improper input validation vulnerability

Squid Cache · Squid

lib/rfc1035.c in Squid 2.x, 3.0 through 3.0.STABLE22, and 3.1 through 3.1.0.15 allows remote attackers to cause a denial of service (assertion failure) via a crafted DNS packet that only contains a header.

4.0 CVSS 2.0 Medium EPSS 28% · top 2.0% CWE-20 · Improper input validation
4.0CVSS 2.0 base score
28%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
26References
16 Jun 2026Last modified by NVD

Description

lib/rfc1035.c in Squid 2.x, 3.0 through 3.0.STABLE22, and 3.1 through 3.1.0.15 allows remote attackers to cause a denial of service (assertion failure) via a crafted DNS packet that only contains a header.

AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://events.ccc.de/congress/2009/Fahrplan/attachments/1483_26c3_ipv4_fuckups.pdf
http://osvdb.org/62044
http://secunia.com/advisories/38451 Vendor Advisory
http://secunia.com/advisories/38455 Vendor Advisory
http://www.securityfocus.com/bid/37522
http://www.securitytracker.com/id?1023520
http://www.squid-cache.org/Advisories/SQUID-2010_1.txt Vendor Advisory
http://www.squid-cache.org/Versions/v2/HEAD/changesets/12597.patch
http://www.squid-cache.org/Versions/v3/3.0/changesets/squid-3.0-9163.patch Patch
http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-9853.patch
http://www.vupen.com/english/advisories/2010/0260 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/56001
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11270
http://events.ccc.de/congress/2009/Fahrplan/attachments/1483_26c3_ipv4_fuckups.pdf
http://osvdb.org/62044
http://secunia.com/advisories/38451 Vendor Advisory
http://secunia.com/advisories/38455 Vendor Advisory
http://www.securityfocus.com/bid/37522
http://www.securitytracker.com/id?1023520
http://www.squid-cache.org/Advisories/SQUID-2010_1.txt Vendor Advisory
http://www.squid-cache.org/Versions/v2/HEAD/changesets/12597.patch
http://www.squid-cache.org/Versions/v3/3.0/changesets/squid-3.0-9163.patch Patch
http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-9853.patch
http://www.vupen.com/english/advisories/2010/0260 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/56001
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11270

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2010-0308), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.