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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

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.006 Low

EPSS

Percentile

78.7%

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.

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.006 Low

EPSS

Percentile

78.7%