description: In-memory file operations (ie: using fopen on a data URI) did not properly restrict negative seeking, allowing for the reading of memory prior to the in-memory buffer. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.
problem types: Buffer Under-read (CWE-127)
affected:
{
product: HHVM
vendor: Facebook
versions:
lessThan: unspecified, status: unaffected, version: 4.98.1, versionType: custom
status: affected, version: 4.98.0
lessThan: unspecified, status: unaffected, version: 4.97.1, versionType: custom
status: affected, version: 4.97.0
lessThan: unspecified, status: unaffected, version: 4.96.1, versionType: custom
status: affected, version: 4.96.0
lessThan: unspecified, status: unaffected, version: 4.95.1, versionType: custom
status: affected, version: 4.95.0
lessThan: unspecified, status: unaffected, version: 4.94.1, versionType: custom
status: affected, version: 4.94.0
lessThan: unspecified, status: unaffected, version: 4.93.2, versionType: custom
lessThan: unspecified, status: affected, version: 4.81.0, versionType: custom
lessThan: unspecified, status: unaffected, version: 4.80.2, versionType: custom
lessThan: unspecified, status: affected, version: 4.57.0, versionType: custom
lessThan: unspecified, status: unaffected, version: 4.56.3, versionType: custom
lessThan: 4.56.3, status: affected, version: unspecified, versionType: custom
}