Multiple vulnerabilities in Irssi
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2017-10965 CVE-2017-10966 |
| CWE-ID | CWE-476 CWE-416 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Irssi Client/Desktop applications / Messaging software |
| Vendor | Irssi.org |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) NULL pointer dereference
EUVDB-ID: #VU7400
Risk: Low
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-2017-10965
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 NULL pointer dereference error when parsing messages with invalid time stamps in Irssi. A remote attacker can send a specially crafted message and crash the affected server.
Update to version 1.0.4.
Irssi: 1.0.0 - 1.0.3
External linkshttp://irssi.org/security/irssi_sa_2017_07.txt
http://github.com/irssi/irssi/commit/5e26325317c72a04c1610ad952974e206384d291
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.
2) Use-after-free
EUVDB-ID: #VU7401
Risk: High
CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-10966
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to use-after-free error when incorrectly using GHashTable interface while updating internal nick list. A remote unauthenticated attacker can create a specially crafted nick name and crash the affected server or execute arbitrary code.
Successful exploitation of the vulnerability may result in remote code execution.
Update to version 1.0.4.
Irssi: 1.0.0 - 1.0.3
External linkshttp://irssi.org/security/irssi_sa_2017_07.txt
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.
