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ubuntucveUbuntu.comUB:CVE-2021-45931
HistoryJan 01, 2022 - 12:00 a.m.

CVE-2021-45931

2022-01-0100:00:00
ubuntu.com
ubuntu.com
8

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.006 Low

EPSS

Percentile

79.0%

HarfBuzz 2.9.0 has an out-of-bounds write in hb_bit_set_invertible_t::set
(called from hb_sparseset_t<hb_bit_set_invertible_t>::set and hb_set_copy).

Bugs

Notes

Author Note
mdeslaur per the oss-fuzz bug, this issue was introduced somewhere between 2021-08-15 and 2021-08-20, which is in 2.9.0 or 2.9.1.

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.006 Low

EPSS

Percentile

79.0%