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Welcome to the qubes-announce mailing list!

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Andrew David Wong

May 14

QSB-114: Intel CPU data exposure vulnerability

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 114: Intel CPU data exposure

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QSB-114: Intel CPU data exposure vulnerability

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 114: Intel CPU data exposure

May 14

Andrew David Wong

May 13

QSB-113: AMD CPU Opcode Cache corruption (XSA-490)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 113: AMD CPU Opcode Cache

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QSB-113: AMD CPU Opcode Cache corruption (XSA-490)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 113: AMD CPU Opcode Cache

May 13

Andrew David Wong

Apr 27

Qubes OS 4.2 approaching end of life

Dear Qubes Community, Qubes OS 4.2 is scheduled to reach end-of-life (EOL) on 2026-06-21,

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Qubes OS 4.2 approaching end of life

Dear Qubes Community, Qubes OS 4.2 is scheduled to reach end-of-life (EOL) on 2026-06-21,

Apr 27

Andrew David Wong

Apr 19

QSB-112: Floating Point Divider State Sampling (XSA-488)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 112: Floating Point Divider

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QSB-112: Floating Point Divider State Sampling (XSA-488)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 112: Floating Point Divider

Apr 19

Andrew David Wong

Apr 15

QSB-111: xfce4-screensaver login bypass

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 111: xfce4-screensaver login

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QSB-111: xfce4-screensaver login bypass

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 111: xfce4-screensaver login

Apr 15

Andrew David Wong

Mar 17

QSB-110: Use after free of paging structures in EPT (XSA-480)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 110: Use after free of paging

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QSB-110: Use after free of paging structures in EPT (XSA-480)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 110: Use after free of paging

Mar 17

Andrew David Wong

12/21/25

Qubes OS 4.3.0 has been released!

Dear Qubes Community, We're pleased to announce the stable release of Qubes OS 4.3.0! This minor

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Qubes OS 4.3.0 has been released!

Dear Qubes Community, We're pleased to announce the stable release of Qubes OS 4.3.0! This minor

12/21/25

Andrew David Wong

8/15/25

QSB-109: Intel microcode updates

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 109: Intel microcode updates](

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QSB-109: Intel microcode updates

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 109: Intel microcode updates](

8/15/25

Andrew David Wong

7/12/25

QSB-108: Transitive Scheduler Attacks (XSA-471)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 108: Transitive Scheduler

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QSB-108: Transitive Scheduler Attacks (XSA-471)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 108: Transitive Scheduler

7/12/25

Andrew David Wong

5/14/25

QSB-107: Multiple CPU branch prediction vulnerabilities

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 107: Multiple CPU branch

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QSB-107: Multiple CPU branch prediction vulnerabilities

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 107: Multiple CPU branch

5/14/25

Andrew David Wong

2/18/25

Qubes OS 4.2.4 has been released!

Dear Qubes Community, We're pleased to announce the stable release of Qubes OS 4.2.4! This patch

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Qubes OS 4.2.4 has been released!

Dear Qubes Community, We're pleased to announce the stable release of Qubes OS 4.2.4! This patch

2/18/25

Marek Marczykowski-Górecki

11/12/24

QSB-106: Information disclosure through uninitialized memory in libxl

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 106: Information disclosure

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QSB-106: Information disclosure through uninitialized memory in libxl

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 106: Information disclosure

11/12/24

Andrew David Wong

10/17/24

QSB-105: Missing enforced decorations for stubdomain windows under KDE

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 105: Missing enforced

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QSB-105: Missing enforced decorations for stubdomain windows under KDE

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 105: Missing enforced

10/17/24

Andrew David Wong

9/17/24

Qubes OS 4.2.3 has been released!

Dear Qubes Community, We're pleased to announce the stable release of Qubes OS 4.2.3! This patch

unread,

Qubes OS 4.2.3 has been released!

Dear Qubes Community, We're pleased to announce the stable release of Qubes OS 4.2.3! This patch

9/17/24

Andrew David Wong

8/1/24

Extended security support for Qubes OS 4.1 has ended

Dear Qubes Community, As [previously announced](https://www.qubes-os.org/news/2024/06/18/qubes-os-4-1

unread,

Extended security support for Qubes OS 4.1 has ended

Dear Qubes Community, As [previously announced](https://www.qubes-os.org/news/2024/06/18/qubes-os-4-1

8/1/24

Andrew David Wong

7/30/24

QSB-104: GUI-related security bugs

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 104: GUI-related security bugs

unread,

QSB-104: GUI-related security bugs

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 104: GUI-related security bugs

7/30/24

Andrew David Wong

7/16/24

QSB-103: Double unlock in x86 guest IRQ handling (XSA-458)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 103: Double unlock in x86

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QSB-103: Double unlock in x86 guest IRQ handling (XSA-458)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 103: Double unlock in x86

7/16/24

Andrew David Wong

7/14/24

Qubes OS 4.2.2 has been released!

Dear Qubes Community, We're pleased to announce the stable release of Qubes OS 4.2.2! This patch

unread,

Qubes OS 4.2.2 has been released!

Dear Qubes Community, We're pleased to announce the stable release of Qubes OS 4.2.2! This patch

7/14/24

Andrew David Wong

6/18/24

Qubes OS 4.1 has reached end-of-life; extended security support continues until 2024-07-31

Dear Qubes Community, As [previously announced](https://www.qubes-os.org/news/2024/03/26/qubes-os-4-1

unread,

Qubes OS 4.1 has reached end-of-life; extended security support continues until 2024-07-31

Dear Qubes Community, As [previously announced](https://www.qubes-os.org/news/2024/03/26/qubes-os-4-1

6/18/24

Andrew David Wong

5/10/24

Qubes OS 4.1 to receive extended security support until 2024-07-31

Dear Qubes Community, Qubes OS 4.1 will reach official end-of-life (EOL) on 2024-06-18. After this

unread,

Qubes OS 4.1 to receive extended security support until 2024-07-31

Dear Qubes Community, Qubes OS 4.1 will reach official end-of-life (EOL) on 2024-06-18. After this

5/10/24

Andrew David Wong

4/10/24

QSB-102: Multiple speculative-execution vulnerabilities: Spectre-BHB, BTC/SRSO (XSA-455, XSA-456)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 102: Multiple speculative-

unread,

QSB-102: Multiple speculative-execution vulnerabilities: Spectre-BHB, BTC/SRSO (XSA-455, XSA-456)

Dear Qubes Community, We have published [Qubes Security Bulletin (QSB) 102: Multiple speculative-

4/10/24

Andrew David Wong

3/26/24

Qubes OS 4.1 reaches EOL on 2024-06-18

Dear Qubes Community, Qubes OS 4.1 is scheduled to reach end-of-life (EOL) on 2024-06-18,

unread,

Qubes OS 4.1 reaches EOL on 2024-06-18

Dear Qubes Community, Qubes OS 4.1 is scheduled to reach end-of-life (EOL) on 2024-06-18,

3/26/24

Andrew David Wong

3/26/24

Qubes OS 4.2.1 has been released!

Dear Qubes Community, We're pleased to announce the stable release of Qubes OS 4.2.1! This [patch

unread,

Qubes OS 4.2.1 has been released!

Dear Qubes Community, We're pleased to announce the stable release of Qubes OS 4.2.1! This [patch

3/26/24

Andrew David Wong

3/18/24

Update for QSB-101: Register File Data Sampling (XSA-452) and Intel Processor Return Predictions Advisory (INTEL-SA-00982)

Dear Qubes Community, We have updated [Qubes Security Bulletin (QSB) 101: Register File Data Sampling

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Update for QSB-101: Register File Data Sampling (XSA-452) and Intel Processor Return Predictions Advisory (INTEL-SA-00982)

Dear Qubes Community, We have updated [Qubes Security Bulletin (QSB) 101: Register File Data Sampling

3/18/24

Andrew David Wong

3/13/24

QSB-101: Register File Data Sampling (XSA-452)

Dear Qubes Community, We have published [Qubes Security Bulletin 101: Register File Data Sampling (

unread,

QSB-101: Register File Data Sampling (XSA-452)

Dear Qubes Community, We have published [Qubes Security Bulletin 101: Register File Data Sampling (

3/13/24

Marek Marczykowski-Górecki

1/30/24

[qubes-announce] QSB-100: Incorrect handling of PCI devices with phantom functions (XSA-449)

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Dear Qubes Community, We have published [Qubes

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[qubes-announce] QSB-100: Incorrect handling of PCI devices with phantom functions (XSA-449)

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Dear Qubes Community, We have published [Qubes

1/30/24

Andrew David Wong

1/19/24

QSB-099: Qrexec policy leak via policy.RegisterArgument service

Dear Qubes Community, We have published [Qubes Security Bulletin 099: Qrexec policy leak via policy.

unread,

QSB-099: Qrexec policy leak via policy.RegisterArgument service

Dear Qubes Community, We have published [Qubes Security Bulletin 099: Qrexec policy leak via policy.

1/19/24

Andrew David Wong

12/18/23

Qubes OS 4.2.0 has been released!

Dear Qubes Community, Qubes OS 4.2.0 brings a host of new features, major improvements, and numerous

unread,

Qubes OS 4.2.0 has been released!

Dear Qubes Community, Qubes OS 4.2.0 brings a host of new features, major improvements, and numerous

12/18/23

Andrew David Wong

12/15/23

QSB-098: CPU microcode updates not loaded with dom0 kernel version 6.6.x

Dear Qubes Community, We have published [Qubes Security Bulletin 098: CPU microcode updates not

unread,

QSB-098: CPU microcode updates not loaded with dom0 kernel version 6.6.x

Dear Qubes Community, We have published [Qubes Security Bulletin 098: CPU microcode updates not

12/15/23

Andrew David Wong

11/15/23

QSB-097: "Reptar" Intel redundant prefix vulnerability

Dear Qubes Community, We have published [Qubes Security Bulletin 097: "Reptar" Intel

unread,

QSB-097: "Reptar" Intel redundant prefix vulnerability

Dear Qubes Community, We have published [Qubes Security Bulletin 097: "Reptar" Intel

11/15/23

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