CVE-2022-42331
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original...
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
- Record
CVE-2022-42331- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
CVE List No score
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
- Record
CVE-2022-42331- Updated
- 2026-11-02
EUVDEUVD-2022-45406 No score
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
- Record
EUVD-2022-45406- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f5x9-rprw-5rc4
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original...
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
- Record
GHSA-f5x9-rprw-5rc4- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVALPINE-CVE-2022-42331
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
- Record
ALPINE-CVE-2022-42331- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
OSV
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
- Record
CVE-2022-42331- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Show 11 moreShow less
OSVUBUNTU-CVE-2022-42331
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
- Record
UBUNTU-CVE-2022-42331- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2022-42331 No score
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
- Record
DEBIAN-CVE-2022-42331- Updated
- 2026-11-03
OSVopenSUSE-SU-2024:12833-1 No score
xen-4.17.0_06-1.1 on GA media
These are all security issues fixed in the xen-4.17.0_06-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:12833-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:0845-1 No score
Security update for xen
This update for xen fixes the following issues:
- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).
- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).
- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).
- Record
SUSE-SU-2023:0845-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:0846-1 No score
Security update for xen
This update for xen fixes the following issues:
- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).
- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).
- Record
SUSE-SU-2023:0846-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:0847-1 No score
Security update for xen
This update for xen fixes the following issues:
- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).
- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).
- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).
- Record
SUSE-SU-2023:0847-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:0848-1 No score
Security update for xen
This update for xen fixes the following issues:
- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).
- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).
- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).
- Record
SUSE-SU-2023:0848-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:0848-2 No score
Security update for xen
This update for xen fixes the following issues:
- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).
- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).
- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).
- Record
SUSE-SU-2023:0848-2- Updated
- 2026-11-02
OSVSUSE-SU-2023:0858-1 No score
Security update for xen
This update for xen fixes the following issues:
- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).
- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).
- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).
- Record
SUSE-SU-2023:0858-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:0859-1 No score
Security update for xen
This update for xen fixes the following issues:
- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).
- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).
- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).
- Record
SUSE-SU-2023:0859-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:0862-1 No score
Security update for xen
This update for xen fixes the following issues:
- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).
- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).
- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).
- Record
SUSE-SU-2023:0862-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
xenAlpine:v3.15 |
4.5.0 up to 4.15.5-r0 | 4.15.5-r0 |
xenAlpine:v3.16 |
4.5.0 up to 4.16.4-r0 | 4.16.4-r0 |
xenAlpine:v3.17 |
4.5.0 up to 4.16.4-r0 | 4.16.4-r0 |
xenAlpine:v3.18 |
4.5.0 up to 4.17.0-r5 | 4.17.0-r5 |
xenAlpine:v3.19 |
4.5.0 up to 4.17.0-r5 | 4.17.0-r5 |
xenAlpine:v3.20 |
4.5.0 up to 4.17.0-r5 | 4.17.0-r5 |
xenAlpine:v3.21 |
4.5.0 up to 4.17.0-r5 | 4.17.0-r5 |
xenAlpine:v3.22 |
4.5.0 up to 4.17.0-r5 | 4.17.0-r5 |
xenAlpine:v3.23 |
4.5.0 up to 4.17.0-r5 | 4.17.0-r5 |
xenAlpine:v3.24 |
4.5.0 up to 4.17.0-r5 | 4.17.0-r5 |
Show 45 moreShow less
| Package | Affected | Fixed |
|---|---|---|
xenDebian:12 |
before 4.17.0+74-g3eac216e6e-1 | 4.17.0+74-g3eac216e6e-1 |
xenDebian:13 |
before 4.17.0+74-g3eac216e6e-1 | 4.17.0+74-g3eac216e6e-1 |
xenDebian:14 |
before 4.17.0+74-g3eac216e6e-1 | 4.17.0+74-g3eac216e6e-1 |
xenDebian:11 From an advisory covering 5 CVEs |
before 4.14.5+94-ge49571868d-1, plus listed versions 4.14.2+25-gb6a8c4f72d-24.14.3+32-g9de3671772-14.14.3+32-g9de3671772-1~deb11u14.14.3-14.14.3-1~deb11u14.14.4+74-gd7b22226b5-14.14.5+24-g87d90d511c-14.14.5+86-g1c354767d5-1 |
4.14.5+94-ge49571868d-1 |
xenSUSE:Linux Enterprise Software Development Kit 12 SP5 From an advisory covering 4 CVEs |
before 4.12.4_34-3.88.1 | 4.12.4_34-3.88.1 |
xenSUSE:Linux Enterprise Server 12 SP5 From an advisory covering 4 CVEs |
before 4.12.4_34-3.88.1 | 4.12.4_34-3.88.1 |
xenSUSE:Linux Enterprise Server for SAP Applications 12 SP5 From an advisory covering 4 CVEs |
before 4.12.4_34-3.88.1 | 4.12.4_34-3.88.1 |
xenSUSE:Linux Enterprise Server 12 SP2-BCL From an advisory covering 2 CVEs |
before 4.7.6_32-43.104.1 | 4.7.6_32-43.104.1 |
xenSUSE:Linux Enterprise High Performance Computing 15 SP3-ESPOS From an advisory covering 4 CVEs |
before 4.14.5_12-150300.3.48.1 | 4.14.5_12-150300.3.48.1 |
xenSUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS From an advisory covering 4 CVEs |
before 4.14.5_12-150300.3.48.1 | 4.14.5_12-150300.3.48.1 |
xenSUSE:Linux Enterprise Real Time 15 SP3 From an advisory covering 4 CVEs |
before 4.14.5_12-150300.3.48.1 | 4.14.5_12-150300.3.48.1 |
xenSUSE:Linux Enterprise Server 15 SP3-LTSS From an advisory covering 4 CVEs |
before 4.14.5_12-150300.3.48.1 | 4.14.5_12-150300.3.48.1 |
xenSUSE:Linux Enterprise Server for SAP Applications 15 SP3 From an advisory covering 4 CVEs |
before 4.14.5_12-150300.3.48.1 | 4.14.5_12-150300.3.48.1 |
xenSUSE:Manager Proxy 4.2 From an advisory covering 4 CVEs |
before 4.14.5_12-150300.3.48.1 | 4.14.5_12-150300.3.48.1 |
xenSUSE:Manager Server 4.2 From an advisory covering 4 CVEs |
before 4.14.5_12-150300.3.48.1 | 4.14.5_12-150300.3.48.1 |
xenSUSE:Linux Enterprise Micro 5.1 From an advisory covering 4 CVEs |
before 4.14.5_12-150300.3.48.1 | 4.14.5_12-150300.3.48.1 |
xenSUSE:Linux Enterprise Micro 5.2 From an advisory covering 4 CVEs |
before 4.14.5_12-150300.3.48.1 | 4.14.5_12-150300.3.48.1 |
xenSUSE:Enterprise Storage 7.1 From an advisory covering 4 CVEs |
before 4.14.5_12-150300.3.48.1 | 4.14.5_12-150300.3.48.1 |
xenSUSE:Linux Enterprise Micro 5.3 From an advisory covering 4 CVEs |
before 4.16.3_06-150400.4.25.1 | 4.16.3_06-150400.4.25.1 |
xenSUSE:Linux Enterprise Module for Basesystem 15 SP4 From an advisory covering 4 CVEs |
before 4.16.3_06-150400.4.25.1 | 4.16.3_06-150400.4.25.1 |
xenSUSE:Linux Enterprise Module for Server Applications 15 SP4 From an advisory covering 4 CVEs |
before 4.16.3_06-150400.4.25.1 | 4.16.3_06-150400.4.25.1 |
xenopenSUSE:Leap Micro 5.3 From an advisory covering 4 CVEs |
before 4.16.3_06-150400.4.25.1 | 4.16.3_06-150400.4.25.1 |
xenopenSUSE:Leap 15.4 From an advisory covering 4 CVEs |
before 4.16.3_06-150400.4.25.1 | 4.16.3_06-150400.4.25.1 |
xenSUSE:Linux Enterprise Micro 5.4 From an advisory covering 4 CVEs |
before 4.16.3_06-150400.4.25.1 | 4.16.3_06-150400.4.25.1 |
xenSUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS From an advisory covering 4 CVEs |
before 4.12.4_34-150100.3.86.1 | 4.12.4_34-150100.3.86.1 |
xenSUSE:Linux Enterprise Server 15 SP1-LTSS From an advisory covering 4 CVEs |
before 4.12.4_34-150100.3.86.1 | 4.12.4_34-150100.3.86.1 |
xenSUSE:Linux Enterprise Server for SAP Applications 15 SP1 From an advisory covering 4 CVEs |
before 4.12.4_34-150100.3.86.1 | 4.12.4_34-150100.3.86.1 |
xenSUSE:OpenStack Cloud 9 From an advisory covering 4 CVEs |
before 4.11.4_38-2.89.1 | 4.11.4_38-2.89.1 |
xenSUSE:OpenStack Cloud Crowbar 9 From an advisory covering 4 CVEs |
before 4.11.4_38-2.89.1 | 4.11.4_38-2.89.1 |
xenSUSE:Linux Enterprise Server for SAP Applications 12 SP4 From an advisory covering 4 CVEs |
before 4.11.4_38-2.89.1 | 4.11.4_38-2.89.1 |
xenSUSE:Linux Enterprise Server 12 SP4-ESPOS From an advisory covering 4 CVEs |
before 4.11.4_38-2.89.1 | 4.11.4_38-2.89.1 |
xenSUSE:Linux Enterprise Server 12 SP4-LTSS From an advisory covering 4 CVEs |
before 4.11.4_38-2.89.1 | 4.11.4_38-2.89.1 |
xenSUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS From an advisory covering 4 CVEs |
before 4.13.4_20-150200.3.71.1 | 4.13.4_20-150200.3.71.1 |
xenSUSE:Linux Enterprise Server 15 SP2-LTSS From an advisory covering 4 CVEs |
before 4.13.4_20-150200.3.71.1 | 4.13.4_20-150200.3.71.1 |
xenSUSE:Linux Enterprise Server for SAP Applications 15 SP2 From an advisory covering 4 CVEs |
before 4.13.4_20-150200.3.71.1 | 4.13.4_20-150200.3.71.1 |
xenSUSE:Enterprise Storage 7 From an advisory covering 4 CVEs |
before 4.13.4_20-150200.3.71.1 | 4.13.4_20-150200.3.71.1 |
xenUbuntu:16.04:LTS |
All versions, plus listed versions 4.5.1-0ubuntu14.5.1-0ubuntu24.6.0-1ubuntu14.6.0-1ubuntu24.6.0-1ubuntu4 Show 7 moreShow less4.6.0-1ubuntu4.14.6.0-1ubuntu4.24.6.0-1ubuntu4.34.6.5-0ubuntu14.6.5-0ubuntu1.14.6.5-0ubuntu1.24.6.5-0ubuntu1.4 |
None known |
xenUbuntu:18.04:LTS |
All versions, plus listed versions 4.9.0-0ubuntu34.9.0-0ubuntu44.9.2-0ubuntu1 |
None known |
xenUbuntu:20.04:LTS |
All versions, plus listed versions 4.9.2-0ubuntu24.9.2-0ubuntu64.9.2-0ubuntu74.11.3+24-g14b62ab3e5-1ubuntu14.11.3+24-g14b62ab3e5-1ubuntu24.11.3+24-g14b62ab3e5-1ubuntu2.24.11.3+24-g14b62ab3e5-1ubuntu2.3 |
None known |
xenUbuntu:22.04:LTS |
All versions, plus listed versions 4.11.4+24-gddaaccbbab-1ubuntu24.16.0-1~ubuntu24.16.0-1~ubuntu2.1 |
None known |
xenUbuntu:24.04:LTS |
All versions, plus listed versions 4.17.2-14.17.2+55-g0b56bed864-14.17.2+76-ge1f9cb16e2-14.17.2+76-ge1f9cb16e2-1ubuntu14.17.3+10-g091466ba55-14.17.3+10-g091466ba55-1.1ubuntu24.17.3+10-g091466ba55-1.1ubuntu3 |
None known |
xenUbuntu:25.10 |
All versions, plus listed versions 4.20.0-1ubuntu14.20.0+68-g35cb38b222-1 |
None known |
xenUbuntu:26.10 |
All versions, plus listed versions 4.20.2+7-g1badcf5035-2build24.20.2+37-g61ff35323e-1ubuntu14.20.3+127-gc42374a105-1 |
None known |
xenUbuntu:26.04:LTS |
All versions, plus listed versions 4.20.0+68-g35cb38b222-14.20.2+7-g1badcf5035-24.20.2+7-g1badcf5035-2build2 |
None known |
xenopenSUSE:Tumbleweed From an advisory covering 3 CVEs |
before 4.17.0_06-1.1 | 4.17.0_06-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-42331 is a medium vulnerability (CVSS 5.5) in Fedoraproject Fedora, published March 21, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 20th percentile. Fixed in xen 4.15.5-r0.
References
xenbits.xenproject.org/xsa/advisory-429.txt
openwall.com/lists/oss-security/2023/03/21/3
xenbits.xen.org/xsa/advisory-429.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR
debian.org/security/2023/dsa-5378
Show 25 moreShow less
security.gentoo.org/glsa/202402-07
nvd.nist.gov/vuln/detail/CVE-2022-42331
github.com/advisories/GHSA-f5x9-rprw-5rc4
security.alpinelinux.org/vuln/CVE-2022-42331
security-tracker.debian.org/tracker/CVE-2022-42331
suse.com/support/update/announcement/2023/suse-su-20230845-1
bugzilla.suse.com/1209017
ubuntu.com/security/CVE-2022-42331
cve.org/CVERecord?id=CVE-2022-42331