Memory leak in ISC BIND - CVE-2022-2906

 

Memory leak in ISC BIND - CVE-2022-2906

Published: September 21, 2022


Vulnerability identifier: #VU67547
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-2906
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in key processing when using TKEY records in Diffie-Hellman mode with OpenSSL 3.0.0 and later versions. A remote attacker can force the application to leak memory and perform denial of service attack.


Affected software

ISC BIND
Gentoo Linux
Oracle Solaris
Ubuntu
openEuler
HPE Moonshot 1500 Chassis Manager
bind9 (Ubuntu package)
bind-export-libs
python3-bind
bind-debugsource
bind-export-devel
bind-libs-lite
bind-chroot
bind-devel
bind-pkcs11-devel
bind-pkcs11
bind-debuginfo
bind-libs
bind-utils
bind
bind-license
bind-pkcs11-libs
bind-dnssec-utils
bind-pkcs11-utils
bind-dnssec-doc
net-dns/bind
net-dns/bind-tools

How to mitigate CVE-2022-2906

Install updates from vendor's website.

ISC BIND - addressed in versions 9.18.7, 9.19.5
HPE Moonshot 1500 Chassis Manager - update to 4.0-b43
bind9 (Ubuntu package) - addressed in versions 1:9.11.3+dfsg-1ubuntu1.18, 1:9.16.1-0ubuntu2.11, 1:9.18.1-1ubuntu1.2
bind-export-libs - addressed in versions 9.11.21-14, 9.11.21-15
python3-bind - addressed in versions 9.11.21-14, 9.11.21-15, 9.16.23-11
bind-debugsource - addressed in versions 9.11.21-14, 9.11.21-15, 9.16.23-11
bind-export-devel - addressed in versions 9.11.21-14, 9.11.21-15
bind-libs-lite - addressed in versions 9.11.21-14, 9.11.21-15
bind-chroot - addressed in versions 9.11.21-14, 9.11.21-15, 9.16.23-11
bind-devel - addressed in versions 9.11.21-14, 9.11.21-15, 9.16.23-11
bind-pkcs11-devel - addressed in versions 9.11.21-14, 9.11.21-15, 9.16.23-11
bind-pkcs11 - addressed in versions 9.11.21-14, 9.11.21-15, 9.16.23-11
bind-debuginfo - addressed in versions 9.11.21-14, 9.11.21-15, 9.16.23-11
bind-libs - addressed in versions 9.11.21-14, 9.11.21-15, 9.16.23-11
bind-utils - addressed in versions 9.11.21-14, 9.11.21-15, 9.16.23-11
bind - addressed in versions 9.11.21-14, 9.11.21-15, 9.16.23-11
bind-license - update to 9.16.23-11
bind-pkcs11-libs - update to 9.16.23-11
bind-dnssec-utils - update to 9.16.23-11
bind-pkcs11-utils - update to 9.16.23-11
bind-dnssec-doc - update to 9.16.23-11
net-dns/bind - update to 9.16.33
net-dns/bind-tools - update to 9.16.33

External References

Related Security Bulletins