Vulnerability · Published Oct 22, 2020 · Assigned by mitre
CVE-2020-27638
High 7.5
In plain English
A high-severity security flaw in the fastd package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.4% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.4%top 16.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | fastd | 21-1 | DEBIAN-CVE-2020-27638 |
| Debian:13 | fastd | 21-1 | DEBIAN-CVE-2020-27638 |
| Debian:14 | fastd | 21-1 | DEBIAN-CVE-2020-27638 |
Affected products (as reported)
References
- https://fastd.readthedocs.io/en/stable/releases/v21.html x_refsource_MISC
- https://github.com/NeoRaider/fastd/commit/737925113363b6130879729cdff9ccc46c33eaea x_refsource_MISC
- https://bugs.debian.org/972521 x_refsource_MISC
- [debian-lts-announce] 20201025 [SECURITY] [DLA-2414-1] fastd security update mailing-list, x_refsource_MLIST
- FEDORA-2020-495c14a23f vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-01dc2bc62c vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-13edfc3215 vendor-advisory, x_refsource_FEDORA