libfsimage 磁盘处理中的多个漏洞 (CVE-2023-34325)
CVE编号
CVE-2023-34325利用情况
暂无补丁情况
N/A披露时间
2024-01-06漏洞描述
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] libfsimage contains parsing code for several filesystems, most of them based on grub-legacy code. libfsimage is used by pygrub to inspect guest disks. Pygrub runs as the same user as the toolstack (root in a priviledged domain). At least one issue has been reported to the Xen Security Team that allows an attacker to trigger a stack buffer overflow in libfsimage. After further analisys the Xen Security Team is no longer confident in the suitability of libfsimage when run against guest controlled input with super user priviledges. In order to not affect current deployments that rely on pygrub patches are provided in the resolution section of the advisory that allow running pygrub in deprivileged mode. CVE-2023-4949 refers to the original issue in the upstream grub project ("An attacker with local access to a system (either through a disk or external drive) can present a modified XFS partition to grub-legacy in such a way to exploit a memory corruption in grub’s XFS file system implementation.") CVE-2023-34325 refers specifically to the vulnerabilities in Xen's copy of libfsimage, which is decended from a very old version of grub.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
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|---|---|
| https://xenbits.xenproject.org/xsa/advisory-443.html |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | xen | * | Up to (excluding) 4.15.5-r3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | xen | * | Up to (excluding) 4.16.5-r3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | xen | * | Up to (excluding) 4.16.5-r3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | xen | * | Up to (excluding) 4.17.2-r3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.19 | xen | * | Up to (excluding) 4.17.2-r3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | xen | * | Up to (excluding) 4.17.2+76-ge1f9cb16e2-1~deb12u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_37 | xen | * | Up to (excluding) 4.16.5-3.fc37 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_38 | xen | * | Up to (excluding) 4.17.2-4.fc38 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_39 | xen | * | Up to (excluding) 4.17.2-4.fc39 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_5.3 | xen-libs | * | Up to (excluding) 4.16.5_08-150400.4.40.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_5.4 | xen-libs | * | Up to (excluding) 4.16.5_08-150400.4.40.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | xen | * | Up to (excluding) 4.16.5_06-150400.4.37.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.5 | xen | * | Up to (excluding) 4.17.2_06-150500.3.12.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | xen | * | Up to (excluding) 4.12.4_40-3.97.1 | |||||
- 攻击路径 N/A
- 攻击复杂度 N/A
- 权限要求 N/A
- 影响范围 N/A
- 用户交互 N/A
- 可用性 N/A
- 保密性 N/A
- 完整性 N/A
| CWE-ID | 漏洞类型 |
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