8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access 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
0.008 Low
EPSS
Percentile
81.8%
A malicious webpage could have triggered a use-after-free in accessibility features of a document, causing memory corruption and a potentially exploitable crash when accessibility was enabled (CVE-2021-29970). Mozilla developers Valentin Gosu, Randell Jesup, Emil Ghitta, Tyson Smith, and Olli Pettay reported memory safety bugs present in Firefox ESR 78.11. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code (CVE-2021-29976). An out of bounds write in ANGLE could have allowed an attacker to corrupt memory leading to a potentially exploitable crash (CVE-2021-30547).
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Mageia | 8 | noarch | nspr | < 4.32-1 | nspr-4.32-1.mga8 |
Mageia | 8 | noarch | rootcerts | < 20210525.00-1.1 | rootcerts-20210525.00-1.1.mga8 |
Mageia | 8 | noarch | nss | < 3.68.0-1 | nss-3.68.0-1.mga8 |
Mageia | 8 | noarch | firefox | < 78.12.0-1 | firefox-78.12.0-1.mga8 |
Mageia | 8 | noarch | firefox-l10n | < 78.12.0-1 | firefox-l10n-78.12.0-1.mga8 |
access.redhat.com/errata/RHSA-2021:2741
bugs.mageia.org/show_bug.cgi?id=29247
developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.67_release_notes
developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.68_release_notes
groups.google.com/a/mozilla.org/g/dev-tech-crypto/c/M01xJ10PkAc
www.mozilla.org/en-US/security/advisories/mfsa2021-29/
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access 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
0.008 Low
EPSS
Percentile
81.8%