Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not properly append data to String objects, which allows remote servers to cause a denial of service (assertion failure and daemon exit) via a long string, as demonstrated by a crafted HTTP Vary header.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "squid",
"binary_version": "3.5.12-1ubuntu7.5"
},
{
"binary_name": "squid-cgi",
"binary_version": "3.5.12-1ubuntu7.5"
},
{
"binary_name": "squid-common",
"binary_version": "3.5.12-1ubuntu7.5"
},
{
"binary_name": "squid-purge",
"binary_version": "3.5.12-1ubuntu7.5"
},
{
"binary_name": "squid3",
"binary_version": "3.5.12-1ubuntu7.5"
},
{
"binary_name": "squidclient",
"binary_version": "3.5.12-1ubuntu7.5"
}
]
}