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SUSE: CVE-2024-24806: SUSE Linux Security Advisory

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SUSE: CVE-2024-24806: SUSE Linux Security Advisory

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/07/2024
Created
03/01/2024
Added
02/29/2024
Modified
04/17/2024

Description

libuv is a multi-platform support library with a focus on asynchronous I/O. The `uv_getaddrinfo` function in `src/unix/getaddrinfo.c` (and its windows counterpart `src/win/getaddrinfo.c`), truncates hostnames to 256 characters before calling `getaddrinfo`. This behavior can be exploited to create addresses like `0x00007f000001`, which are considered valid by `getaddrinfo` and could allow an attacker to craft payloads that resolve to unintended IP addresses, bypassing developer checks. The vulnerability arises due to how the `hostname_ascii` variable (with a length of 256 bytes) is handled in `uv_getaddrinfo` and subsequently in `uv__idna_toascii`. When the hostname exceeds 256 characters, it gets truncated without a terminating null byte. As a result attackers may be able to access internal APIs or for websites (similar to MySpace) that allows users to have `username.example.com` pages. Internal services that crawl or cache these user pages can be exposed to SSRF attacks if a malicious user chooses a long vulnerable username. This issue has been addressed in release version 1.48.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Solution(s)

  • suse-upgrade-corepack18
  • suse-upgrade-corepack20
  • suse-upgrade-nodejs12
  • suse-upgrade-nodejs12-devel
  • suse-upgrade-nodejs12-docs
  • suse-upgrade-nodejs14
  • suse-upgrade-nodejs14-devel
  • suse-upgrade-nodejs14-docs
  • suse-upgrade-nodejs16
  • suse-upgrade-nodejs16-devel
  • suse-upgrade-nodejs16-docs
  • suse-upgrade-nodejs18
  • suse-upgrade-nodejs18-devel
  • suse-upgrade-nodejs18-docs
  • suse-upgrade-nodejs20
  • suse-upgrade-nodejs20-devel
  • suse-upgrade-nodejs20-docs
  • suse-upgrade-npm12
  • suse-upgrade-npm14
  • suse-upgrade-npm16
  • suse-upgrade-npm18
  • suse-upgrade-npm20

References

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