An issue was discovered in Exiv2 0.26. When the data structure of the structure ifd is incorrect, the program assigns pValue_ to 0x0, and the value of pValue() is 0x0. TiffImageEntry::doWriteImage will use the value of pValue() to cause a segmentation fault. To exploit this vulnerability, someone must open a crafted tiff file.
{
"unresolved_ranges": [
{
"extracted_events": [
{
"last_affected": "14.04"
}
],
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*"
},
{
"extracted_events": [
{
"last_affected": "16.04"
}
],
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*"
},
{
"extracted_events": [
{
"last_affected": "18.04"
}
],
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
},
{
"extracted_events": [
{
"last_affected": "18.10"
}
],
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"
}
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "0.26"
}
],
"source": "CPE_FIELD",
"cpe": "cpe:2.3:a:exiv2:exiv2:0.26:*:*:*:*:*:*:*"
}