Description
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.
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 | 2.5.6 | — |
| Debian 13 | squid | 2.5.6 | — |
| Debian 12 | squid | 2.5.6 | — |
References
- http://www.squid-cache.org/bugs/show_bug.cgi?id=972
- 1011214 vdb-entry
- 9801 vdb-entry
- 20060223 old Squid clientAbortBody issue - NOT an overflow? mailing-list
- 12754 third-party-advisory
- 12508 third-party-advisory
- http://www.securitylab.ru/47881.html