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ubuntuUbuntuUSN-3627-2
HistoryApr 30, 2018 - 12:00 a.m.

Apache HTTP Server vulnerabilities

2018-04-3000:00:00
ubuntu.com
87

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

7.9 High

AI Score

Confidence

Low

0.962 High

EPSS

Percentile

99.5%

Releases

  • Ubuntu 18.04 ESM

Packages

  • apache2 - Apache HTTP server

Details

USN-3627-1 fixed vulnerabilities in Apache HTTP Server. This update
provides the corresponding updates for Ubuntu 18.04 LTS.

Original advisory details:

Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server
mod_authnz_ldap module incorrectly handled missing charset encoding
headers. A remote attacker could possibly use this issue to cause the
server to crash, resulting in a denial of service. (CVE-2017-15710)

Elar Lang discovered that the Apache HTTP Server incorrectly handled
certain characters specified in . A remote attacker could
possibly use this issue to upload certain files, contrary to expectations.
(CVE-2017-15715)

It was discovered that the Apache HTTP Server mod_session module
incorrectly handled certain headers. A remote attacker could possibly use
this issue to influence session data. (CVE-2018-1283)

Robert Swiecki discovered that the Apache HTTP Server incorrectly handled
certain requests. A remote attacker could possibly use this issue to cause
the server to crash, leading to a denial of service. (CVE-2018-1301)

Robert Swiecki discovered that the Apache HTTP Server mod_cache_socache
module incorrectly handled certain headers. A remote attacker could
possibly use this issue to cause the server to crash, leading to a denial
of service. (CVE-2018-1303)

Nicolas Daniels discovered that the Apache HTTP Server incorrectly
generated the nonce when creating HTTP Digest authentication challenges.
A remote attacker could possibly use this issue to replay HTTP requests
across a cluster of servers. (CVE-2018-1312)

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

7.9 High

AI Score

Confidence

Low

0.962 High

EPSS

Percentile

99.5%