CVE-2023-3567— Kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race
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I. Basic Information for CVE-2023-3567
Vulnerability Information
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Vulnerability Title
Kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race
Source: NVD (National Vulnerability Database)
Vulnerability Description
A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
释放后使用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在资源管理错误漏洞，该漏洞源于vcs_read存在释放后重用漏洞。攻击者可利用该漏洞造成系统崩溃或泄露内核信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | 0:4.18.0-553.rt7.342.el8_10 ~ * | cpe:/a:redhat:enterprise_linux:8::realtime | |
| Red Hat | Red Hat Enterprise Linux 8 | 0:4.18.0-553.el8_10 ~ * | cpe:/a:redhat:enterprise_linux:8::crb | |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support | 0:4.18.0-372.87.1.el8_6 ~ * | cpe:/o:redhat:rhev_hypervisor:4.4::el8 | |
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support | 0:4.18.0-477.43.1.el8_8 ~ * | cpe:/o:redhat:rhel_eus:8.8::baseos | |
| Red Hat | Red Hat Enterprise Linux 9 | 0:5.14.0-427.13.1.el9_4 ~ * | cpe:/a:redhat:enterprise_linux:9::crb | |
| Red Hat | Red Hat Enterprise Linux 9 | 0:5.14.0-427.13.1.el9_4 ~ * | cpe:/a:redhat:enterprise_linux:9::crb | |
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | 0:5.14.0-70.85.1.el9_0 ~ * | cpe:/o:redhat:rhel_eus:9.0::baseos | |
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | 0:5.14.0-70.85.1.rt21.156.el9_0 ~ * | cpe:/a:redhat:rhel_eus:9.0::realtime | |
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | 0:5.14.0-284.48.1.el9_2 ~ * | cpe:/a:redhat:rhel_eus:9.2::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | 0:5.14.0-284.48.1.rt14.333.el9_2 ~ * | cpe:/a:redhat:rhel_eus:9.2::nfv | |
| Red Hat | Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 | 0:4.18.0-372.87.1.el8_6 ~ * | cpe:/o:redhat:rhev_hypervisor:4.4::el8 | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 |
II. Public POCs for CVE-2023-3567
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Red Hat · 2023-07-24 · 10 CVEs total
| CVE-2023-3812 | 7.8 HIGH | Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags |
| CVE-2023-38200 | 7.5 HIGH | Keylime: registrar is subject to a dos against ssl connections |
| CVE-2023-3640 | 7.0 HIGH | Kernel: x86/mm: a per-cpu entry area leak was identified through the init_cea_offsets func |
| CVE-2023-33952 | 6.7 MEDIUM | Kernel: vmwgfx: double free within the handling of vmw_buffer_object objects |
| CVE-2023-33951 | 6.7 MEDIUM | Kernel: vmwgfx: race condition leading to information disclosure vulnerability |
| CVE-2023-3750 | 6.5 MEDIUM | Libvirt: improper locking in virstoragepoolobjlistsearch may lead to denial of service |
| CVE-2023-3019 | 6.0 MEDIUM | Qemu: e1000e: heap use-after-free in e1000e_write_packet_to_guest() |
| CVE-2023-3745 | 5.5 MEDIUM | Imagemagick: heap-buffer-overflow in pushcharpixel() in quantum-private.h |
| CVE-2023-3384 | 5.4 MEDIUM | Quay: stored cross site scripting |
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V. Comments for CVE-2023-3567
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