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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2021-1495
HistoryApr 29, 2021 - 6:15 p.m.

CVE-2021-1495

2021-04-2918:15:09
Debian Security Bug Tracker
security-tracker.debian.org
12

5.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

49.1%

Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of specific HTTP header parameters. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured file policy for HTTP packets and deliver a malicious payload.

OSVersionArchitecturePackageVersionFilename
Debian11allsnort< 2.9.20-0+deb11u1snort_2.9.20-0+deb11u1_all.deb
Debian10allsnort< 2.9.20-0+deb10u1snort_2.9.20-0+deb10u1_all.deb
Debian999allsnort<= 2.9.15.1-6snort_2.9.15.1-6_all.deb

5.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

49.1%