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SuseOPENSUSE-SU-2021:0621-1
HistoryApr 26, 2021 - 12:00 a.m.

Security update for MozillaFirefox (important)

2021-04-2600:00:00
lists.opensuse.org
33

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

An update that fixes 8 vulnerabilities is now available.

Description:

This update for MozillaFirefox fixes the following issues:

  • Firefox was updated to 78.10.0 ESR (bsc#1184960)
    • CVE-2021-23994: Out of bound write due to lazy initialization
    • CVE-2021-23995: Use-after-free in Responsive Design Mode
    • CVE-2021-23998: Secure Lock icon could have been spoofed
    • CVE-2021-23961: More internal network hosts could have been probed by
      a malicious webpage
    • CVE-2021-23999: Blob URLs may have been granted additional privileges
    • CVE-2021-24002: Arbitrary FTP command execution on FTP servers using
      an encoded URL
    • CVE-2021-29945: Incorrect size computation in WebAssembly JIT could
      lead to null-reads
    • CVE-2021-29946: Port blocking could be bypassed

This update was imported from the SUSE:SLE-15-SP2:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

  • openSUSE Leap 15.2:

    zypper in -t patch openSUSE-2021-621=1

OSVersionArchitecturePackageVersionFilename
openSUSE Leap15.2x86_64< - openSUSE Leap 15.2 (x86_64):- openSUSE Leap 15.2 (x86_64):.x86_64.rpm
How to protect your server from attacks?

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

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