Buffer overflow in Chocolate-Doom Chocolate Doom
CVE-2020-14983
The server in Chocolate Doom 3.0.0 and Crispy Doom 5.8.0 doesn't validate the user-controlled num_players value, leading to a buffer overflow. A malicious user can overwrite the server's stack.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Chocolate-Doom Chocolate Doom — versions 3.0.0
- Chocolate-Doom Crispy Doom — versions 5.8.0
- openSUSE Backports — versions sle-15
- openSUSE Leap — versions 15.1, 15.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/chocolate-doom/chocolate-doom/issues/1293 (Exploit, Patch, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00002.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00007.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00012.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-14983?
- CVE-2020-14983 is a critical-severity vulnerability in Chocolate-Doom Chocolate Doom, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2020-06-22.
- How severe is CVE-2020-14983?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-14983 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.