The MITRE CVE dictionary describes this issue as:
The clientAbortBody function in client_side.c in Squid Web Proxy Cache before 2.6 STABLE6 allows remote attackers to cause a denial of service (segmentation fault) via unspecified vectors that trigger a null dereference. NOTE: in a followup advisory, a researcher claimed that the issue was a buffer overflow that was not fixed in STABLE6. However, the vendor's bug report clearly shows that the researcher later retracted this claim, because the tested product was actually STABLE5.
Find out more about CVE-2004-2654 from the
MITRE CVE dictionary dictionary and
NIST NVD.
Statement
Not vulnerable. This issue only affected 2.5 STABLE4 and 2.5 STABLE5 versions of Squid and does not affect the versions of Squid distributed with Red Hat Enterprise Linux.