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ubuntucveUbuntu.comUB:CVE-2022-43552
HistoryDec 21, 2022 - 12:00 a.m.

CVE-2022-43552

2022-12-2100:00:00
ubuntu.com
ubuntu.com
86
curl
vulnerability
use after free
http proxy
smb
telnet

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

51.5%

A use after free vulnerability exists in curl <7.87.0. Curl can be asked to
tunnel virtually all protocols it supports through an HTTP proxy. HTTP
proxies can (and often do) deny such tunnel operations. When getting denied
to tunnel the specific protocols SMB or TELNET, curl would use a
heap-allocated struct after it had been freed, in its transfer shutdown
code path.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchcurl< 7.58.0-2ubuntu3.22UNKNOWN
ubuntu20.04noarchcurl< 7.68.0-1ubuntu2.15UNKNOWN
ubuntu22.04noarchcurl< 7.81.0-1ubuntu1.7UNKNOWN
ubuntu22.10noarchcurl< 7.85.0-1ubuntu0.2UNKNOWN
ubuntu23.04noarchcurl< 7.87.0-1UNKNOWN
ubuntu14.04noarchcurl< 7.35.0-1ubuntu2.20+esm14UNKNOWN
ubuntu16.04noarchcurl< 7.47.0-1ubuntu2.19+esm7UNKNOWN

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

51.5%