CVE-2023-0266
Linux Kernel Use-After-Free Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
YesDecision
Descriptions
A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e
A use-after-free flaw was found in snd_ctl_elem_read in sound/core/control.c in Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel. In this flaw a normal privileged, local attacker may impact the system due to a locking issue in the compat path, leading to a kernel information leak problem.
A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e
Linux kernel contains a use-after-free vulnerability that allows for privilege escalation to gain ring0 access from the system user.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2023-01-13 CVE Reserved
- 2023-01-24 CVE Published
- 2023-03-30 Exploited in Wild
- 2023-04-20 KEV Due Date
- 2024-05-20 First Exploit
- 2024-08-02 CVE Updated
- 2024-12-17 EPSS Updated
CWE
- CWE-416: Use After Free
CAPEC
- CAPEC-233: Privilege Escalation
References (7)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://github.com/SeanHeelan/claude_opus_cve_2023_0266 | 2024-05-20 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-0266 | 2023-04-10 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2163379 | 2023-04-10 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 4.14.303 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 4.14.303" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.15 < 4.19.270 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 4.19.270" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.20 < 5.4.229 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.4.229" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.5 < 5.10.163 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5 < 5.10.163" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.11 < 5.15.88 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.15.88" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.16 < 6.1.6 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.16 < 6.1.6" | - |
Affected
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