CVE-2007-0248
The aclMatchExternal function in Squid before 2.6.STABLE7 allows remote attackers to cause a denial of service (crash) by causing an external_acl queue overload, which triggers an infinite loop.
02 Description
The aclMatchExternal function in Squid before 2.6.STABLE7 allows remote attackers to cause a denial of service (crash) by causing an external_acl queue overload, which triggers an infinite loop.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 7.07% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 94.1% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2007-01-16 18:00Z19 YR AGO
- Last updated
- 2024-08-07 12:12Z2 YR AGO
- Reserved
- 2007-01-16
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 3d01f17b0f84ca473091e22ff9db9b85d7359c7c3539403ab0f74fef501377db
05 Affected products
06 References
- www.squid-cache.orghttp://www.squid-cache.org/Versions/v2/2.6/squid-2.6.STABLE7-RELEASENOTES.html#s12
- www.securityfocus.com22203http://www.securityfocus.com/bid/22203
- secunia.com23921http://secunia.com/advisories/23921
- secunia.com23946http://secunia.com/advisories/23946
- www.vupen.comADV-2007-0199http://www.vupen.com/english/advisories/2007/0199
- www.gentoo.orgGLSA-200701-22http://www.gentoo.org/security/en/glsa/glsa-200701-22.xml
- www.novell.comSUSE-SA:2007:012http://www.novell.com/linux/security/advisories/2007_12_squid.html
- www.mandriva.comMDKSA-2007:026http://www.mandriva.com/security/advisories?name=MDKSA-2007:026
- exchange.xforce.ibmcloud.comsquid-externalacl-dos(31525)https://exchange.xforce.ibmcloud.com/vulnerabilities/31525
- www.ubuntu.comUSN-414-1http://www.ubuntu.com/usn/usn-414-1
- secunia.com23805http://secunia.com/advisories/23805
- secunia.com23767http://secunia.com/advisories/23767
- secunia.com23889http://secunia.com/advisories/23889
- www.squid-cache.orghttp://www.squid-cache.org/bugs/show_bug.cgi?id=1848
07 Fixed in
Debian 12
- squid Fixed in 2.6.5-4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- squid Fixed in 2.6.5-4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- squid Fixed in 2.6.5-4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.