低危 ISC BIND内存破坏漏洞

CVE编号

CVE-2019-6475

利用情况

暂无

补丁情况

官方补丁

披露时间

2019-10-18
漏洞描述
Mirror zones are a BIND feature allowing recursive servers to pre-cache zone data provided by other servers. A mirror zone is similar to a zone of type secondary, except that its data is subject to DNSSEC validation before being used in answers, as if it had been looked up via traditional recursion, and when mirror zone data cannot be validated, BIND falls back to using traditional recursion instead of the mirror zone. However, an error in the validity checks for the incoming zone data can allow an on-path attacker to replace zone data that was validated with a configured trust anchor with forged data of the attacker's choosing. The mirror zone feature is most often used to serve a local copy of the root zone. If an attacker was able to insert themselves into the network path between a recursive server using a mirror zone and a root name server, this vulnerability could then be used to cause the recursive server to accept a copy of falsified root zone data. This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4.
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
应用 isc bind * From
(including)
9.14.0
Up to
(including)
9.14.6
运行在以下环境
应用 isc bind * From
(including)
9.15.0
Up to
(including)
9.15.4
运行在以下环境
系统 alpine_3.10 bind * Up to
(excluding)
9.14.7-r0
运行在以下环境
系统 alpine_3.11 bind * Up to
(excluding)
9.14.7-r0
运行在以下环境
系统 alpine_3.12 bind * Up to
(excluding)
9.14.7-r0
运行在以下环境
系统 alpine_3.13 bind * Up to
(excluding)
9.14.7-r0
运行在以下环境
系统 alpine_3.14 bind * Up to
(excluding)
9.14.7-r0
运行在以下环境
系统 alpine_3.15 bind * Up to
(excluding)
9.14.7-r0
运行在以下环境
系统 alpine_edge bind * Up to
(excluding)
9.14.7-r0
阿里云评分
3.5
  • 攻击路径
    本地
  • 攻击复杂度
    容易
  • 权限要求
    无需权限
  • 影响范围
    有限影响
  • EXP成熟度
    N/A
  • 补丁情况
    官方补丁
  • 数据保密性
    无影响
  • 数据完整性
    传输被破坏
  • 服务器危害
    无影响
  • 全网数量
    N/A
CWE-ID 漏洞类型
CWE-345 对数据真实性的验证不充分
阿里云安全产品覆盖情况