Lucene search

K
veracodeVeracode Vulnerability DatabaseVERACODE:20899
HistoryJul 26, 2019 - 3:57 a.m.

Denial Of Service (DoS)

2019-07-2603:57:04
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
6

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

libsass.so is vulnerable to denial of service (DoS). The attack is due to incorrect parsing of % as a modulo operator in parser.cpp, accessing beyond the stack bounds when the attacker submits a malicious sass file to Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp.

CPENameOperatorVersion
libsass.sole0.0.9
libsass.sole0.0.9

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P