A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable in a string expression under certain conditions. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnginx-mod-http-auth-pam",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-cache-purge",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-dav-ext",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-echo",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-fancyindex",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-geoip",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-geoip2",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-headers-more-filter",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-image-filter",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-ndk",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-perl",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-subs-filter",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-uploadprogress",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-upstream-fair",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-http-xslt-filter",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-mail",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-nchan",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-rtmp",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-stream",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-stream-geoip",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "libnginx-mod-stream-geoip2",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "nginx",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "nginx-common",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "nginx-core",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "nginx-extras",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "nginx-full",
"binary_version": "1.18.0-6ubuntu14.21"
},
{
"binary_name": "nginx-light",
"binary_version": "1.18.0-6ubuntu14.21"
}
]
}{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnginx-mod-http-geoip",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "libnginx-mod-http-image-filter",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "libnginx-mod-http-perl",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "libnginx-mod-http-xslt-filter",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "libnginx-mod-mail",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "libnginx-mod-stream",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "libnginx-mod-stream-geoip",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "nginx",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "nginx-common",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "nginx-core",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "nginx-extras",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "nginx-full",
"binary_version": "1.24.0-2ubuntu7.18"
},
{
"binary_name": "nginx-light",
"binary_version": "1.24.0-2ubuntu7.18"
}
]
}{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnginx-mod-http-geoip",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "libnginx-mod-http-image-filter",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "libnginx-mod-http-perl",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "libnginx-mod-http-xslt-filter",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "libnginx-mod-mail",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "libnginx-mod-stream",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "libnginx-mod-stream-geoip",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "nginx",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "nginx-common",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "nginx-core",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "nginx-extras",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "nginx-full",
"binary_version": "1.28.3-2ubuntu1.11"
},
{
"binary_name": "nginx-light",
"binary_version": "1.28.3-2ubuntu1.11"
}
]
}{
"binaries": [
{
"binary_name": "nginx",
"binary_version": "1.4.6-1ubuntu3.9+esm8"
},
{
"binary_name": "nginx-common",
"binary_version": "1.4.6-1ubuntu3.9+esm8"
},
{
"binary_name": "nginx-core",
"binary_version": "1.4.6-1ubuntu3.9+esm8"
},
{
"binary_name": "nginx-extras",
"binary_version": "1.4.6-1ubuntu3.9+esm8"
},
{
"binary_name": "nginx-full",
"binary_version": "1.4.6-1ubuntu3.9+esm8"
},
{
"binary_name": "nginx-light",
"binary_version": "1.4.6-1ubuntu3.9+esm8"
},
{
"binary_name": "nginx-naxsi",
"binary_version": "1.4.6-1ubuntu3.9+esm8"
},
{
"binary_name": "nginx-naxsi-ui",
"binary_version": "1.4.6-1ubuntu3.9+esm8"
}
]
}{
"binaries": [
{
"binary_name": "nginx",
"binary_version": "1.10.3-0ubuntu0.16.04.5+esm9"
},
{
"binary_name": "nginx-common",
"binary_version": "1.10.3-0ubuntu0.16.04.5+esm9"
},
{
"binary_name": "nginx-core",
"binary_version": "1.10.3-0ubuntu0.16.04.5+esm9"
},
{
"binary_name": "nginx-extras",
"binary_version": "1.10.3-0ubuntu0.16.04.5+esm9"
},
{
"binary_name": "nginx-full",
"binary_version": "1.10.3-0ubuntu0.16.04.5+esm9"
},
{
"binary_name": "nginx-light",
"binary_version": "1.10.3-0ubuntu0.16.04.5+esm9"
}
]
}{
"binaries": [
{
"binary_name": "libnginx-mod-http-auth-pam",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-cache-purge",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-dav-ext",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-echo",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-fancyindex",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-geoip",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-headers-more-filter",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-image-filter",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-lua",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-ndk",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-perl",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-subs-filter",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-uploadprogress",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-upstream-fair",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-http-xslt-filter",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-mail",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-nchan",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-rtmp",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "libnginx-mod-stream",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "nginx",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "nginx-common",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "nginx-core",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "nginx-extras",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "nginx-full",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
},
{
"binary_name": "nginx-light",
"binary_version": "1.14.0-0ubuntu1.11+esm4"
}
]
}{
"binaries": [
{
"binary_name": "libnginx-mod-http-auth-pam",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-cache-purge",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-dav-ext",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-echo",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-fancyindex",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-geoip",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-geoip2",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-headers-more-filter",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-image-filter",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-lua",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-ndk",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-perl",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-subs-filter",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-uploadprogress",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-upstream-fair",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-http-xslt-filter",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-mail",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-nchan",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-rtmp",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "libnginx-mod-stream",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "nginx",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "nginx-common",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "nginx-core",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "nginx-extras",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "nginx-full",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
},
{
"binary_name": "nginx-light",
"binary_version": "1.18.0-0ubuntu1.7+esm3"
}
]
}