CVE-2023-1075: Infoleak
First published: Sun Feb 26 2023(Updated: )
A flaw in the Linux Kernel found. The tls_is_tx_ready() incorrectly checks for list emptiness, potentially accessing a type confused entry to the list_head, leaking the last byte of the confused field that overlaps with rec->tx_ready. Reference: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=ffe2a22562444720b05bdfeb999c03e810d84cbb">https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=ffe2a22562444720b05bdfeb999c03e810d84cbb</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.1.11 | 6.1.11 |
| IBM Security Verify Governance - Identity Manager | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager | <=ISVG 10.0.2 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.16-1 |
| Linux kernel |
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Reference Links
- https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=ffe2a22562444720b05bdfeb999c03e810d84cbb
- https://launchpad.net/bugs/cve/CVE-2023-1075
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2212175
- https://access.redhat.com/errata/RHSA-2023:6583
- https://access.redhat.com/errata/RHSA-2023:6901
- https://access.redhat.com/errata/RHSA-2023:7077
- https://access.redhat.com/errata/RHSA-2024:0575
- https://access.redhat.com/errata/RHSA-2024:0724
- https://bugzilla.redhat.com/show_bug.cgi?id=2173434
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1075
- https://nvd.nist.gov/vuln/detail/CVE-2023-1075
- https://security-tracker.debian.org/tracker/CVE-2023-1075
- https://ubuntu.com/security/CVE-2023-1075
- https://git.kernel.org/linus/ffe2a22562444720b05bdfeb999c03e810d84cbb
- https://www.openwall.com/lists/oss-security/2023/03/01/6
- https://www.ibm.com/support/pages/node/7172423 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2023-1075?
CVE-2023-1075 is classified as a high-severity vulnerability affecting the Linux Kernel.
How do I fix CVE-2023-1075?
To fix CVE-2023-1075, update the Linux Kernel package to version 6.1.11 or later for Red Hat, or to 5.10.223-1 or later for Debian.
Which Linux Kernel versions are affected by CVE-2023-1075?
CVE-2023-1075 affects all Linux Kernel versions before 6.1.11 for Red Hat, and versions prior to 5.10.223-1 for Debian.
What components are affected by CVE-2023-1075?
CVE-2023-1075 affects the Linux Kernel as well as IBM Security Verify Governance, Identity Manager software and virtual appliance components.
Is there a potential impact of exploitation of CVE-2023-1075?
Exploitation of CVE-2023-1075 could lead to information leakage due to incorrect list handling in the Linux Kernel.
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