CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
AI Score
Confidence
Low
EPSS
Percentile
60.6%
Varnish 2.0.6 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window’s title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator. NOTE: the vendor disputes the significance of this report, stating that "This is not a security problem in Varnish or any other piece of software which writes a logfile. The real problem is the mistaken belief that you can cat(1) a random logfile to your terminal safely.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | varnish | <= 7.1.1-1.1 | varnish_7.1.1-1.1_all.deb |
Debian | 11 | all | varnish | <= 6.5.1-1+deb11u3 | varnish_6.5.1-1+deb11u3_all.deb |
Debian | 999 | all | varnish | <= 7.5.0-3 | varnish_7.5.0-3_all.deb |
Debian | 13 | all | varnish | <= 7.5.0-3 | varnish_7.5.0-3_all.deb |