中危 libslirp_project libslirp 使用未经初始化的指针

CVE编号

CVE-2021-3595

利用情况

暂无

补丁情况

没有补丁

披露时间

2021-06-16
漏洞描述
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
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
https://bugzilla.redhat.com/show_bug.cgi?id=1970489
https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html
https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://security.gentoo.org/glsa/202107-44
https://security.netapp.com/advisory/ntap-20210805-0004/
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
应用 libslirp_project libslirp * Up to
(excluding)
4.6.0
运行在以下环境
系统 alibaba_cloud_linux_3 runc * Up to
(excluding)
1.1.4-2.1.al8
运行在以下环境
系统 alpine_3.14 libslirp * Up to
(excluding)
4.6.0-r0
运行在以下环境
系统 alpine_3.15 libslirp * Up to
(excluding)
4.6.0-r0
运行在以下环境
系统 alpine_3.16 libslirp * Up to
(excluding)
4.6.0-r0
运行在以下环境
系统 alpine_3.17 libslirp * Up to
(excluding)
4.6.0-r0
运行在以下环境
系统 alpine_3.18 libslirp * Up to
(excluding)
4.6.0-r0
运行在以下环境
系统 alpine_3.19 libslirp * Up to
(excluding)
4.6.0-r0
运行在以下环境
系统 amazon_2 qemu * Up to
(excluding)
3.1.0-8.amzn2.0.12
运行在以下环境
系统 debian_10 qemu * Up to
(excluding)
3.1+dfsg-8+deb10u10
运行在以下环境
系统 debian_11 qemu * Up to
(excluding)
4.4.0-1+deb11u2
运行在以下环境
系统 debian_12 qemu * Up to
(excluding)
4.6.1-1
运行在以下环境
系统 fedora_33 libslirp * Up to
(excluding)
4.3.1-5.fc33
运行在以下环境
系统 fedora_34 libslirp * Up to
(excluding)
4.4.0-3.fc34
运行在以下环境
系统 kylinos_aarch64_V10SP1 qemu * Up to
(excluding)
4.1.0-44.p03.ky10
运行在以下环境
系统 kylinos_x86_64_V10SP1 qemu * Up to
(excluding)
4.1.0-44.p03.ky10
运行在以下环境
系统 opensuse_Leap_15.2 qemu * Up to
(excluding)
4.2.1-lp152.9.20.1
运行在以下环境
系统 opensuse_Leap_15.3 qemu-s390 * Up to
(excluding)
4.2.1-11.25.2
运行在以下环境
系统 opensuse_Leap_15.4 libslirp0 * Up to
(excluding)
4.3.1-150300.6.2
运行在以下环境
系统 oracle_7 qemu * Up to
(excluding)
4.2.1-13.el7
运行在以下环境
系统 suse_12_SP5 xen * Up to
(excluding)
4.12.4_12-3.49.1
运行在以下环境
系统 ubuntu_18.04 qemu * Up to
(excluding)
2.11+dfsg-1ubuntu7.37
运行在以下环境
系统 ubuntu_20.04 libslirp * Up to
(excluding)
4.1.0-2ubuntu2.2
运行在以下环境
系统 ubuntu_21.04 libslirp * Up to
(excluding)
4.4.0-1ubuntu0.1
运行在以下环境
系统 ubuntu_21.10 libslirp * Up to
(excluding)
4.4.0-1ubuntu0.21.10.1
运行在以下环境
系统 ubuntu_22.04 libslirp * Up to
(excluding)
4.6.1-1
运行在以下环境
系统 ubuntu_22.10 libslirp * Up to
(excluding)
4.6.1-1
阿里云评分
5.1
  • 攻击路径
    本地
  • 攻击复杂度
    容易
  • 权限要求
    普通权限
  • 影响范围
    越权影响
  • EXP成熟度
    N/A
  • 补丁情况
    没有补丁
  • 数据保密性
    数据泄露
  • 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-824 使用未经初始化的指针
阿里云安全产品覆盖情况