Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU69337
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-42898
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to an integer overflow within the S4U2Proxy handler on 32-bit systems. A remote user can send specially crafted request to the KDC server, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationUpdate the affected package krb5 to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server for SAP: 15-SP3
SUSE Linux Enterprise Server: 15-SP3-LTSS
SUSE Linux Enterprise Realtime Extension: 15-SP3
SUSE Linux Enterprise High Performance Computing: 15-SP3-ESPOS - 15-SP3-LTSS
openSUSE Leap Micro: 5.2
SUSE Enterprise Storage: 7.1
SUSE Manager Retail Branch Server: 4.2
SUSE Linux Enterprise Micro: 5.1 - 5.2
SUSE Manager Server: 4.2
SUSE Manager Proxy: 4.2
krb5-32bit-debuginfo: before 1.19.2-150300.10.1
krb5-32bit: before 1.19.2-150300.10.1
krb5-server-debuginfo: before 1.19.2-150300.10.1
krb5-server: before 1.19.2-150300.10.1
krb5-plugin-preauth-spake-debuginfo: before 1.19.2-150300.10.1
krb5-plugin-preauth-spake: before 1.19.2-150300.10.1
krb5-plugin-preauth-pkinit-debuginfo: before 1.19.2-150300.10.1
krb5-plugin-preauth-pkinit: before 1.19.2-150300.10.1
krb5-plugin-preauth-otp-debuginfo: before 1.19.2-150300.10.1
krb5-plugin-preauth-otp: before 1.19.2-150300.10.1
krb5-plugin-kdb-ldap-debuginfo: before 1.19.2-150300.10.1
krb5-plugin-kdb-ldap: before 1.19.2-150300.10.1
krb5-devel: before 1.19.2-150300.10.1
krb5-client-debuginfo: before 1.19.2-150300.10.1
krb5-client: before 1.19.2-150300.10.1
krb5-debugsource: before 1.19.2-150300.10.1
krb5-debuginfo: before 1.19.2-150300.10.1
krb5: before 1.19.2-150300.10.1
External linkshttp://www.suse.com/support/update/announcement/2023/suse-su-20230198-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.