4.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
6.5 Medium
AI Score
Confidence
Low
0.002 Low
EPSS
Percentile
51.6%
Jack Louis of Dyad Security discovered that Perl did not sufficiently
check the explicit length argument in format strings. Specially
crafted format strings with overly large length arguments led to a
crash of the Perl interpreter or even to execution of arbitrary
attacker-defined code with the privileges of the user running the Perl
program.
However, this attack was only possible in insecure Perl programs which
use variables with user-defined values in string interpolations
without checking their validity.