Risk | Critical |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2023-42118 |
CWE-ID | CWE-191 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Fedora Operating systems & Components / Operating system libspf2 Operating systems & Components / Operating system package or component |
Vendor | Fedoraproject |
Security Bulletin
This security bulletin contains one critical risk vulnerability.
EUVDB-ID: #VU81255
Risk: Critical
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-42118
CWE-ID:
CWE-191 - Integer underflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer underflow in libspf2 when parsing SPF macros. A remote attacker can pass specially crafted data to the server, trigger an integer underflow and execute arbitrary code on the target system.
Install updates from vendor's repository.
Vulnerable software versionsFedora: 38
libspf2: before 1.2.11-10.20210922git4915c308.fc38
External linkshttp://bodhi.fedoraproject.org/updates/FEDORA-2023-7f01e967ad
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.