libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.
{
"unresolved_ranges": [
{
"source": "CPE_STRING",
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*"
],
"extracted_events": [
{
"last_affected": "12.04"
},
{
"last_affected": "14.04"
},
{
"last_affected": "16.04"
}
],
"vendor_product": "canonical:ubuntu_linux"
},
{
"source": "CPE_STRING",
"cpes": [
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"last_affected": "8.0"
},
{
"last_affected": "9.0"
}
],
"vendor_product": "debian:debian_linux"
}
]
}