CVE-2022-38177
Severity
7.5HIGH
EPSS
1.6%
top 18.46%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 21
Latest updateSep 22
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6
Affected Packages3 packages
▶CVEListV5isc/bind9Open Source Branches 9.8 through 9.16 9.8.4 through versions before 9.16.33, Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.33-S1, Supported Preview Branches 9.9-S through 9.11-S 9.9.4-S1 through versions up to and including 9.11.37-S1+2
Also affects: Debian Linux 10.0, 11.0, Fedora 35, 36, 37
Patches
🔴Vulnerability Details
4GHSA▶
GHSA-5vfq-rv44-c5ff: By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak↗2022-09-22
OSV▶
CVE-2022-38177: By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak↗2022-09-21
📋Vendor Advisories
5Debian▶
CVE-2022-38177: bind9 - By spoofing the target resolver with responses that have a malformed ECDSA signa...↗2022