Buffer overflow in Gnu Screen
CVE-2020-9366
A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Specially crafted output, or a special program, could corrupt memory and crash Screen or possibly have unspecified other impact.
Vulnerability class: Buffer Overflow
EPSS: 0.027 (84.4th percentile) — read the EPSS interpretation.
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.
Affected products
- Gnu Screen
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Patch, Mailing List, x_refsource_MISC, Release Notes)
- cve@mitre.org (Patch, Mailing List, x_refsource_MISC, Release Notes, Vendor Advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2020-9366?
- CVE-2020-9366 is a critical-severity vulnerability in Gnu Screen, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-02-24.
- How severe is CVE-2020-9366?
- Critical severity. CVSS v3 base score is 9.8 out of 10.