Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2019-12312 |
CWE-ID | CWE-476 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
libreswan Universal components / Libraries / Libraries used by multiple products |
Vendor | libreswan.org |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU27711
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-12312
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference issue within the send_v2N_spi_response_from_state() function in programs/pluto/ikev2_send.c. A remote attacker can cause an assertion failure by initiating an IKEv2 IKE_SA_INIT exchange, followed by a bogus INFORMATIONAL exchange instead of the expected IKE_AUTH exchange and cause the pluto IKE daemon to restart.
MitigationInstall update from vendor's website.
Vulnerable software versionslibreswan: 3.27
External linkshttp://www.iwantacve.cn/index.php/archives/218/
http://github.com/libreswan/libreswan/compare/9b1394e...3897683
http://github.com/libreswan/libreswan/issues/246
http://libreswan.org/security/CVE-2019-12312/CVE-2019-12312.txt
http://libreswan.org/security/CVE-2019-12312/libreswan-3.27-CVE-2019-12312.patch
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.