A vulnerability has been identified in the libarchive library. This flaw involves an 'off-by-one' miscalculation when handling prefixes and suffixes for file names. This can lead to a 1-byte write overflow. While seemingly small, such an overflow can corrupt adjacent memory, leading to unpredictable program behavior, crashes, or in specific circumstances, could be leveraged as a building block for more sophisticated exploitation. This bug affects libarchive versions prior to 3.8.0.
{
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "bsdcpio",
"binary_version": "3.1.2-7ubuntu2.8+esm4"
},
{
"binary_name": "bsdtar",
"binary_version": "3.1.2-7ubuntu2.8+esm4"
},
{
"binary_name": "libarchive13",
"binary_version": "3.1.2-7ubuntu2.8+esm4"
}
]
}{
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "bsdcpio",
"binary_version": "3.1.2-11ubuntu0.16.04.8+esm2"
},
{
"binary_name": "bsdtar",
"binary_version": "3.1.2-11ubuntu0.16.04.8+esm2"
},
{
"binary_name": "libarchive13",
"binary_version": "3.1.2-11ubuntu0.16.04.8+esm2"
}
]
}{
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "bsdcpio",
"binary_version": "3.2.2-3.1ubuntu0.7+esm2"
},
{
"binary_name": "bsdtar",
"binary_version": "3.2.2-3.1ubuntu0.7+esm2"
},
{
"binary_name": "libarchive-tools",
"binary_version": "3.2.2-3.1ubuntu0.7+esm2"
},
{
"binary_name": "libarchive13",
"binary_version": "3.2.2-3.1ubuntu0.7+esm2"
}
]
}