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ubuntucveUbuntu.comUB:CVE-2009-2473
HistoryAug 21, 2009 - 12:00 a.m.

CVE-2009-2473

2009-08-2100:00:00
ubuntu.com
ubuntu.com
13

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.004

Percentile

72.7%

neon before 0.28.6, when expat is used, does not properly detect recursion
during entity expansion, which allows context-dependent attackers to cause
a denial of service (memory and CPU consumption) via a crafted XML document
containing a large number of nested entity references, a similar issue to
CVE-2003-1564.

Notes

Author Note
jdstrand neon, neon26 and neon27 are all build with libxml2 and not expat

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.004

Percentile

72.7%