CVE-2020-9366
published 2020-02-24CVE-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…
PriorityP345critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
2.71%
84.3th percentile
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.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | screen | < screen 4.8.0-1 (bookworm) | screen 4.8.0-1 (bookworm) |
| gnu | screen | < 4.8.0 | 4.8.0 |
| gnu | screen | >= 0 < 4.8.0-1 | 4.8.0-1 |
| gnu | screen | >= 0 < 4.8.0-1 | 4.8.0-1 |
| gnu | screen | >= 0 < 4.8.0-1 | 4.8.0-1 |
| gnu | screen | >= 0 < 4.8.0-1 | 4.8.0-1 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_redhat9.8CRITICAL
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Red Hat
screen: Out of bounds access when setting w_xtermosc after OSC 49
vendor_redhat·2020-02-06·CVSS 9.8
CVE-2020-9366 [CRITICAL] CWE-119 screen: Out of bounds access when setting w_xtermosc after OSC 49
screen: Out of bounds access when setting w_xtermosc after OSC 49
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.
Statement: It is believed that the vulnerability was caused by upstream commit c5db181. GNU screen versions prior to 4.7.0 do not seem to be impacted.
Package: screen (Red Hat Enterprise Linux 5) - Not affected
Package: screen (Red Hat Enterprise Linux 6) - Not affected
Package: screen (Red Hat Enterprise Linux 7) - Not affected
Debian
CVE-2020-9366: screen - A buffer overflow was found in the way GNU Screen before 4.8.0 treated the speci...
vendor_debian·2020·CVSS 9.8
CVE-2020-9366 [CRITICAL] CVE-2020-9366: screen - A buffer overflow was found in the way GNU Screen before 4.8.0 treated the speci...
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.
Scope: local
bookworm: resolved (fixed in 4.8.0-1)
bullseye: resolved (fixed in 4.8.0-1)
forky: resolved (fixed in 4.8.0-1)
sid: resolved (fixed in 4.8.0-1)
trixie: resolved (fixed in 4.8.0-1)
GHSA
GHSA-fcx3-q2fc-3hrw: A buffer overflow was found in the way GNU Screen before 4
ghsa_unreviewed·2022-05-24
CVE-2020-9366 [HIGH] CWE-120 GHSA-fcx3-q2fc-3hrw: A buffer overflow was found in the way GNU Screen before 4
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.
OSV
CVE-2020-9366: A buffer overflow was found in the way GNU Screen before 4
osv·2020-02-24·CVSS 9.8
CVE-2020-9366 [CRITICAL] CVE-2020-9366: A buffer overflow was found in the way GNU Screen before 4
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.
No detection rules found.
No public exploits indexed.
http://www.openwall.com/lists/oss-security/2020/02/25/1https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.htmlhttps://security.gentoo.org/glsa/202003-62https://www.openwall.com/lists/oss-security/2020/02/06/3http://www.openwall.com/lists/oss-security/2020/02/25/1https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.htmlhttps://security.gentoo.org/glsa/202003-62https://www.openwall.com/lists/oss-security/2020/02/06/3
2020-02-24
Published