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ubuntuUbuntuUSN-5448-1
HistoryMay 26, 2022 - 12:00 a.m.

ncurses vulnerabilities

2022-05-2600:00:00
ubuntu.com
38
ubuntu 16.04 esm
ubuntu 14.04 esm
ncurses
array bounds
arbitrary code execution
sensitive information exposure
memory management
denial of service
pointer values
null pointer dereferencing
libtic
infinite loop

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

AI Score

8.4

Confidence

High

EPSS

0.022

Percentile

89.5%

Releases

  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • ncurses - shared libraries for terminal handling (32-bit)

Details

It was discovered that ncurses was not properly checking array bounds
when executing the fmt_entry function, which could result in an
out-of-bounds write. An attacker could possibly use this issue to
execute arbitrary code. (CVE-2017-10684)

It was discovered that ncurses was not properly checking user input,
which could result in it being treated as a format argument. An
attacker could possibly use this issue to expose sensitive
information or to execute arbitrary code. (CVE-2017-10685)

It was discovered that ncurses was incorrectly performing memory
management operations and was not blocking access attempts to
illegal memory locations. An attacker could possibly use this issue
to cause a denial of service. (CVE-2017-11112, CVE-2017-13729,
CVE-2017-13730, CVE-2017-13731, CVE-2017-13732, CVE-2017-13733,
CVE-2017-13734)

It was discovered that ncurses was not properly performing checks
on pointer values before attempting to access the related memory
locations, which could lead to NULL pointer dereferencing. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2017-11113)

It was discovered that ncurses was incorrectly handling loops in
libtic, which could lead to the execution of an infinite loop. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2017-13728)

OSVersionArchitecturePackageVersionFilename
Ubuntu16.04noarchlibx32ncurses5< 6.0+20160213-1ubuntu1+esm1UNKNOWN
Ubuntu16.04noarchlib32ncurses5< 6.0+20160213-1ubuntu1UNKNOWN
Ubuntu16.04noarchlib32ncurses5-dbgsym< 6.0+20160213-1ubuntu1UNKNOWN
Ubuntu16.04noarchlib32ncurses5-dev< 6.0+20160213-1ubuntu1UNKNOWN
Ubuntu16.04noarchlib32ncurses5-dev-dbgsym< 6.0+20160213-1ubuntu1UNKNOWN
Ubuntu16.04noarchlib32ncursesw5< 6.0+20160213-1ubuntu1UNKNOWN
Ubuntu16.04noarchlib32ncursesw5-dbgsym< 6.0+20160213-1ubuntu1UNKNOWN
Ubuntu16.04noarchlib32ncursesw5-dev< 6.0+20160213-1ubuntu1UNKNOWN
Ubuntu16.04noarchlib32ncursesw5-dev-dbgsym< 6.0+20160213-1ubuntu1UNKNOWN
Ubuntu16.04noarchlib32tinfo-dev< 6.0+20160213-1ubuntu1UNKNOWN
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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

AI Score

8.4

Confidence

High

EPSS

0.022

Percentile

89.5%