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ubuntucveUbuntu.comUB:CVE-2018-0500
HistoryJul 11, 2018 - 12:00 a.m.

CVE-2018-0500

2018-07-1100:00:00
ubuntu.com
ubuntu.com
21
cve-2018-0500
lib/smtp.c
buffer overflow
exploitable vulnerability
curl
control data
smtp
nonstandard argument
curlopt_buffersize

CVSS2

7.5

Attack Vector

NETWORK

Attack 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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.013

Percentile

86.1%

Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl
7.60.0 has a heap-based buffer overflow that might be exploitable by an
attacker who can control the data that curl transmits over SMTP with
certain settings (i.e., use of a nonstandard --limit-rate argument or
CURLOPT_BUFFERSIZE value).

Notes

Author Note
mdeslaur introduced by: https://github.com/curl/curl/commit/e40e9d7f0decc79 curl 7.54.1 to and including curl 7.60.0
OSVersionArchitecturePackageVersionFilename
ubuntu17.10noarchcurl< 7.55.1-1ubuntu2.6UNKNOWN
ubuntu18.04noarchcurl< 7.58.0-2ubuntu3.2UNKNOWN

CVSS2

7.5

Attack Vector

NETWORK

Attack 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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.013

Percentile

86.1%