A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.
If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.
We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.
References
Link | Resource |
---|---|
http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html | Third Party Advisory VDB Entry |
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html | Third Party Advisory VDB Entry |
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=0323bce598eea038714f941ce2b22541c46d488f | Mailing List Patch Vendor Advisory |
https://kernel.dance/0323bce598eea038714f941ce2b22541c46d488f | Patch Vendor Advisory |
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html | Mailing List Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html | Mailing List Third Party Advisory |
https://security.netapp.com/advisory/ntap-20240202-0003/ | Third Party Advisory |
https://www.debian.org/security/2023/dsa-5480 | Third Party Advisory |
https://www.debian.org/security/2023/dsa-5492 | Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
22 Aug 2024, 20:24
Type | Values Removed | Values Added |
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References | () http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html - Third Party Advisory, VDB Entry | |
References | () https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html - Mailing List, Third Party Advisory | |
References | () https://security.netapp.com/advisory/ntap-20240202-0003/ - Third Party Advisory |
02 Feb 2024, 14:15
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11 Jan 2024, 19:15
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References |
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29 Nov 2023, 15:15
Type | Values Removed | Values Added |
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References |
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26 Oct 2023, 18:09
Type | Values Removed | Values Added |
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References | (MISC) https://www.debian.org/security/2023/dsa-5480 - Third Party Advisory | |
References | (MISC) https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html - Mailing List, Third Party Advisory | |
References | (MISC) http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html - Third Party Advisory, VDB Entry | |
References | (MISC) https://www.debian.org/security/2023/dsa-5492 - Third Party Advisory | |
First Time |
Debian debian Linux
Debian |
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CPE | cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
20 Oct 2023, 00:15
Type | Values Removed | Values Added |
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11 Oct 2023, 19:15
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References |
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10 Sep 2023, 12:16
Type | Values Removed | Values Added |
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19 Aug 2023, 18:17
Type | Values Removed | Values Added |
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References |
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31 Jul 2023, 17:26
Type | Values Removed | Values Added |
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First Time |
Linux linux Kernel
Linux |
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CPE | cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
|
References | (MISC) https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=0323bce598eea038714f941ce2b22541c46d488f - Mailing List, Patch, Vendor Advisory | |
References | (MISC) https://kernel.dance/0323bce598eea038714f941ce2b22541c46d488f - Patch, Vendor Advisory | |
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
CWE | CWE-416 |
21 Jul 2023, 21:15
Type | Values Removed | Values Added |
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New CVE |
Information
Published : 2023-07-21 21:15
Updated : 2024-08-22 20:24
NVD link : CVE-2023-3776
Mitre link : CVE-2023-3776
CVE.ORG link : CVE-2023-3776
JSON object : View
Products Affected
linux
- linux_kernel
debian
- debian_linux
CWE
CWE-416
Use After Free