中危 Linux:由于异常数据包导致 netback 缓冲区溢出 (CVE-2023-34319)

CVE编号

CVE-2023-34319

利用情况

暂无

补丁情况

官方补丁

披露时间

2023-09-22
漏洞描述
The fix for XSA-423 added logic to Linux'es netback driver to deal with
a frontend splitting a packet in a way such that not all of the headers
would come in one piece. Unfortunately the logic introduced there
didn't account for the extreme case of the entire packet being split
into as many pieces as permitted by the protocol, yet still being
smaller than the area that's specially dealt with to keep all (possible)
headers together. Such an unusual packet would therefore trigger a
buffer overrun in the driver.

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。
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 amazon_2 kernel * Up to
(excluding)
5.4.253-167.359.amzn2
运行在以下环境
系统 amazon_2023 kernel * Up to
(excluding)
6.1.49-69.116.amzn2023
运行在以下环境
系统 amazon_AMI kernel * Up to
(excluding)
4.14.322-170.535.amzn1
运行在以下环境
系统 debian_11 linux * Up to
(excluding)
5.10.191-1
运行在以下环境
系统 debian_12 linux * Up to
(excluding)
6.1.52-1
运行在以下环境
系统 fedora_37 kernel * Up to
(excluding)
6.4.9-100.fc37
运行在以下环境
系统 fedora_38 kernel * Up to
(excluding)
6.4.9-200.fc38
运行在以下环境
系统 opensuse_Leap_15.4 dtb-al * Up to
(excluding)
5.3.18-150300.59.133.1
运行在以下环境
系统 opensuse_Leap_15.5 kernel * Up to
(excluding)
4.12.14-150100.197.154.1
运行在以下环境
系统 suse_12_SP5 kernel * Up to
(excluding)
4.12.14-16.149.1
运行在以下环境
系统 ubuntu_20.04 linux * Up to
(excluding)
5.4.0-1059.64
运行在以下环境
系统 ubuntu_22.04 linux * Up to
(excluding)
5.15.0-1045.50
运行在以下环境
系统 xen xen * From
(including)
3.2.0
阿里云评分
6.5
  • 攻击路径
    本地
  • 攻击复杂度
    复杂
  • 权限要求
    普通权限
  • 影响范围
    越权影响
  • EXP成熟度
    未验证
  • 补丁情况
    官方补丁
  • 数据保密性
    无影响
  • 数据完整性
    无影响
  • 服务器危害
    无影响
  • 全网数量
    N/A
CWE-ID 漏洞类型
CWE-787 跨界内存写
阿里云安全产品覆盖情况