libyal libmsiecf through 20260525 Double Free via libmsiecf_url_values_read_data
Impact
libyal libmsiecf through 20260525 contains a double free vulnerability in libmsiecf_url_values_read_data() that allows attackers to corrupt heap memory via crafted partial URL records. Attackers can supply a crafted MSIE cache index.dat file whose recovered partial record has an oversized unknown_offset, crashing forensic tools processing it.
Source excerpt · VulnCheckAffected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
libyal · libmsiecf
Other versions: unaffected
| Version / range | Source status |
|---|---|
| 0 through 20260525 (inclusive) | affected |
Original source description
libyal libmsiecf through 20260525 contains a double free vulnerability in libmsiecf_url_values_read_data() that allows attackers to corrupt heap memory via crafted partial URL records. Attackers can supply a crafted MSIE cache index.dat file whose recovered partial record has an oversized unknown_offset, crashing forensic tools processing it.
References
- Source reference github.com/libyal/libmsiecf/issues/6
- Source reference github.com/libyal/libmsiecf
- Patch github.com/libyal/libmsiecf/commit/a99a703d190d62f6c21b6225cf84ce80037e45d5
- Source reference github.com/libyal/libmsiecf/blob/20260525/libmsiecf/libmsiecf_url_values.c
- Source reference hackmd.io/@haindpwn/libmsiecf-url-record-partial-recovery-double-free
- Security advisory www.vulncheck.com/advisories/libyal-libmsiecf-through-20260525-double-free-via-libmsiecf-url-values-read-data