| Name | CVE-2018-1172 |
| Description | This vulnerability allows remote attackers to deny service on vulnerable installations of The Squid Software Foundation Squid 3.5.27-20180318. Authentication is not required to exploit this vulnerability. The specific flaw exists within ClientRequestContext::sslBumpAccessCheck(). A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition to users of the system. Was ZDI-CAN-6088. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| squid (PTS) | buster | 4.6-1+deb10u7 | fixed |
| buster (security) | 4.6-1+deb10u10 | fixed |
| bullseye | 4.13-10+deb11u2 | fixed |
| bullseye (security) | 4.13-10+deb11u3 | fixed |
| bookworm | 5.7-2 | fixed |
| bookworm (security) | 5.7-2+deb12u1 | fixed |
| trixie | 6.6-1 | fixed |
| sid | 6.9-1 | fixed |
| squid3 (PTS) | jessie, jessie (lts) | 3.5.23-5+deb8u7 | vulnerable |
| stretch (security) | 3.5.23-5+deb9u7 | vulnerable |
| stretch (lts), stretch | 3.5.23-5+deb9u10 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| squid | source | experimental | 4.0.21-1~exp5 | unimportant | | |
| squid | source | wheezy | (not affected) | | | |
| squid | source | (unstable) | 4.1-1 | unimportant | | |
| squid3 | source | (unstable) | (unfixed) | unimportant | | |
Notes
[wheezy] - squid <not-affected> (Vunerable code introduced in 3.1)
src:squid as source package reintroduced for 4.x in experimental
http://www.squid-cache.org/Advisories/SQUID-2018_3.txt
Squid 3.5 patch: http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2018_3.patch
Only affects custom builds with OpenSSL support enabled