This security advisory describes one high risk vulnerability.
1) Buffer overflow
Risk: High
CVSSv3: 7.7 [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]
CVE-ID: CVE-2020-14355
CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Exploit availability: No
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the QUIC image decoding process of the SPICE remote display system. A remote user can pass specially crafted data to the server or client application, trigger memory corruption in the QUIC image compression algorithm and crash the application or execute arbitrary code on the system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
SPICE: 0.5.2, 0.5.3, 0.6.0, 0.6.1, 0.6.2, 0.6.3, 0.6.4, 0.7.0, 0.7.1, 0.7.2, 0.7.3, 0.8.0, 0.8.1, 0.8.2, 0.8.3, 0.9.0, 0.9.1, 0.10.0, 0.10.1, 0.11.0, 0.11.3, 0.12.0, 0.12.2, 0.12.3, 0.12.4, 0.12.5, 0.12.6, 0.12.8, 0.13.0, 0.13.1, 0.13.2, 0.13.3, 0.13.90, 0.13.91, 0.14.0, 0.14.1, 0.14.2
CPE
External links
https://bugzilla.redhat.com/show_bug.cgi?id=1868435https://www.openwall.com/lists/oss-security/2020/10/06/10
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 ..
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