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ubuntucveUbuntu.comUB:CVE-2021-44790
HistoryDec 20, 2021 - 12:00 a.m.

CVE-2021-44790

2021-12-2000:00:00
ubuntu.com
ubuntu.com
144

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.088 Low

EPSS

Percentile

94.5%

JSON

A carefully crafted request body can cause a buffer overflow in the mod_lua
multipart parser (r:parsebody() called from Lua scripts). The Apache httpd
team is not aware of an exploit for the vulnerabilty though it might be
possible to craft one. This issue affects Apache HTTP Server 2.4.51 and
earlier.

Notes

Author Note
mdeslaur Fixed by r1896039 in 2.4.x
sbeattie mod_lua is not runtime enabled with Apache’s package config in Ubuntu by default.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchapache2< 2.4.29-1ubuntu4.21UNKNOWN
ubuntu20.04noarchapache2< 2.4.41-4ubuntu3.9UNKNOWN
ubuntu21.04noarchapache2< 2.4.46-4ubuntu1.5UNKNOWN
ubuntu21.10noarchapache2< 2.4.48-3.1ubuntu3.2UNKNOWN
ubuntu22.04noarchapache2< 2.4.52-1ubuntu1UNKNOWN
ubuntu14.04noarchapache2< 2.4.7-1ubuntu4.22+esm3) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchapache2< 2.4.18-2ubuntu3.17+esm4) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN

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9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.088 Low

EPSS

Percentile

94.5%

JSON
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