CVE-2020-18897 json
An use-after-free vulnerability in the libpff_item_tree_create_node function of libyal Libpff before 20180623 allows attackers to cause a d…
published 2021-08-19 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-10810
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
An use-after-free vulnerability in the libpff_item_tree_create_node function of libyal Libpff before 20180623 allows attackers to cause a denial of service (DOS) or execute arbitrary code via a crafted pff file.
Patch / fix
- libpff_project libpff 20180623
- libpff Debian 14, Debian 13, Debian 12 20180714-1
debian advisories DEBIAN-CVE-2020-18897
- github.com/libyal/libpff/issues/61 advisory
Exploit prediction
0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/libyal/libpff/issues/61 referenced PoC, tagged "exploit" by a source, unverified
- github.com https://github.com/libyal/libpff/issues/62 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.4 | AV:L/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
github.com
/libyal/libpff/issues/61
exploit, issue-tracking, patch, third-party-advisory
-
github.com
/libyal/libpff/issues/62
exploit, issue-tracking, third-party-advisory
Sources
- CVE List CVE-2020-18897
- NVD CVE-2020-18897
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.