DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs950896

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
screen (PTS)buster, buster (security)4.6.2-3+deb10u1fixed
sid, trixie4.9.1-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
screensourcejessie(not affected)
screensourcestretch(not affected)
screensourcebuster(not affected)


[buster] - screen <not-affected> (Vulnerable code introduced in v4.7.0)
[stretch] - screen <not-affected> (Vulnerable code introduced in v4.7.0)
[jessie] - screen <not-affected> (Vulnerable code introduced in v4.7.0)
Fixed by: (v4.8.0)
Follow-up: (v4.8.0)
Introduced due to: (v4.7.0)

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