CVE-2022-2906
Memory leaks in code handling Diffie-Hellman key exchange via TKEY RRs (OpenSSL 3.0.0+ only)
02 Description
Memory leaks in code handling Diffie-Hellman key exchange via TKEY RRs (OpenSSL 3.0.0+ only)
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 2.04% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 81.1% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2022-09-21 10:15Z4 YR AGO
- Last updated
- 2025-05-28 15:25Z1 YR AGO
- Reserved
- 2022-08-19
- Assigning CNA
- isc
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-401Missing Release of Memory after Effective LifetimeVariant
- Data version
- 5.1
- Document digest
- 74439cceca8a7fb1470fb8c5ea1c6d4ac57d892a6754ddaeb8a04d57a3afc697
05 Affected products
06 References
- kb.isc.orghttps://kb.isc.org/docs/cve-2022-2906
- www.openwall.com[oss-security] 20220921 ISC has disclosed six vulnerabilities in BIND (CVE-2022-2795, CVE-2022-2881, CVE-2022-2906, CVE-2022-3080, CVE-2022-38177, CVE-2022-38178)http://www.openwall.com/lists/oss-security/2022/09/21/3
- security.gentoo.orgGLSA-202210-25https://security.gentoo.org/glsa/202210-25
07 Remediation
Upgrade to the patched release most closely related to your current version of BIND: BIND 9.18.7 or BIND 9.19.5.
08 Fixed in
Debian 12
- bind9 Fixed in 1:9.18.7-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- bind9 Fixed in 1:9.18.7-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- bind9 Fixed in 1:9.18.7-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- bind9 Fixed in 1:9.18.1-1ubuntu1.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.