VulnerabilityModified
CVE-2020-9366
A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49.
CRITICAL 9.8EPSS 2.71%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.71% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- gnu/screen
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2020/02/25/1Mailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.htmlMailing List, Patch, Release Notes, Vendor Advisory
- https://security.gentoo.org/glsa/202003-62Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/02/06/3Mailing List, Patch, Release Notes
- http://www.openwall.com/lists/oss-security/2020/02/25/1Mailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.htmlMailing List, Patch, Release Notes, Vendor Advisory
- https://security.gentoo.org/glsa/202003-62Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/02/06/3Mailing List, Patch, Release Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.