Vulnerability identifier: #VU20964
Vulnerability 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:
CWE-ID:
CWE-416
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
libslirp
Universal components / Libraries /
Libraries used by multiple products
Vendor: Freedesktop.org
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists in "ip_reass()" routine in "ip_input.c" file while reassembling incoming packets, if the first fragment is bigger than the m->m_dat[] buffer. A remote attacker can send a specially crafted packet and cause the application to crash.
Mitigation
Install update from vendor's website.
Vulnerable software versions
libslirp: 4.0.0
External links
http://www.openwall.com/lists/oss-security/2019/09/06/3
http://gitlab.freedesktop.org/slirp/libslirp/commit/c5927943
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.