VulnerabilityModified
CVE-2021-43412
An issue was discovered in GNU Hurd before 0.9 20210404-9. libports accepts fake notification messages from any client on any port, which can lead to port use-after-free.
HIGH 7.8EPSS 0.36%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in GNU Hurd before 0.9 20210404-9. libports accepts fake notification messages from any client on any port, which can lead to port use-after-free. This can be exploited for local privilege escalation to get full root access.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.36% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- gnu/hurd
- Source
- cve@mitre.org
References
- https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.htmlExploit, Mailing List, Vendor Advisory
- https://www.mail-archive.com/bug-hurd%40gnu.org/msg32116.html
- https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.htmlExploit, Mailing List, Vendor Advisory
- https://www.mail-archive.com/bug-hurd%40gnu.org/msg32116.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.