Vulnerability in Isc Bind
CVE-2022-38177
By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.032 (87.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: +0.000
Affected products
- Isc Bind — versions 9.9.3, 9.9.12, 9.9.13
- Isc Bind9 — versions Open Source Branches 9.8 through 9.16 9.8.4 through versions before 9.16.33, Supported Preview Branches 9.9-S through 9.11-S 9.9.4-S1 through versions up to and including 9.11.37-S1, Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.33-S1
- NetApp Active Iq Unified Manager
- Debian Linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 35, 36, 37
Weakness classification (CWE)
Public proof-of-concept exploits
References
- kb.isc.org/docs/cve-2022-38177 (Patch, Third Party Advisory)
- www.openwall.com/lists/oss-security/2022/09/21/3 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.debian.org/security/2022/dsa-5235 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2022/10/msg00007.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202210-25 (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20221228-0010/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-38177?
- CVE-2022-38177 is a high-severity vulnerability in Isc Bind, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2022-09-21.
- How severe is CVE-2022-38177?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-38177 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.