8.8
CVE-2021-21900
- EPSS 2.47%
- Veröffentlicht 19.11.2021 19:15:08
- Zuletzt bearbeitet 21.11.2024 05:49:12
- Erkennungen
LoginA code execution vulnerability exists in the dxfRW::processLType() functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dxf file can lead to a use-after-free vulnerability. An attacker can provide a malicious file to trigger this vulnerability.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Debian ≫ Debian Linux Version 9.0
Debian ≫ Debian Linux Version 10.0
Debian ≫ Debian Linux Version 11.0
Fedoraproject ≫ Fedora Version 34
Fedoraproject ≫ Fedora Version 35
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 2.47% | 0.824 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 8.8 | 2.8 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
|
| NIST | 6.8 | 8.6 | 6.4 |
AV:N/AC:M/Au:N/C:P/I:P/A:P
|
| Cisco Talos | 8.8 | 2.8 | 5.9 |
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
|
CWE-416 Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
https://lists.debian.org/debian-lts-announce/2021/12/msg00002.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDI3HCTCACMIC7I4ILB3NRU6DCMADI5H/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTIAMP7QJDKV4ADDLR4GVVX2TXYLHVOZ/
https://security.gentoo.org/glsa/202305-26
https://www.debian.org/security/2022/dsa-5077
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1351