Use After Free in Comodo Antivirus
CVE-2019-14694
A use-after-free flaw in the sandbox container implemented in cmdguard.sys in Comodo Antivirus 12.0.0.6870 can be triggered due to a race condition when handling IRP_MJ_CLEANUP requests in the minifilter for directory change notifications. This allows an attacker to cause a denial of service (BSOD) when an executable is run inside the container.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (32.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Comodo Antivirus — versions 12.0.0.6870
Weakness classification (CWE)
Public proof-of-concept exploits
References
- rce4fun.blogspot.com/2019/08/comodo-antivirus-sandbox-race-condition.html (Exploit, Third Party Advisory)
- github.com/SouhailHammou/Exploits/blob/master/CVE-2019-14694 - Comodo AV Sandbo… (Patch)
Frequently asked questions
- What is CVE-2019-14694?
- CVE-2019-14694 is a medium-severity vulnerability in Comodo Antivirus, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 4.7/10. Published 2019-08-28.
- How severe is CVE-2019-14694?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2019-14694 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.