Arch Linux Security Advisory ASA-202108-9

Severity: High
Date : 2021-08-10
CVE-ID : CVE-2021-38165
Package : lynx
Type : information disclosure
Remote : Yes
Link : https://security.archlinux.org/AVG-2261

Summary

The package lynx before version 2.8.9-4 is vulnerable to information
disclosure.

Resolution

Upgrade to 2.8.9-4.

pacman -Syu “lynx>=2.8.9-4”

The problem has been fixed upstream but no release is available yet.

Workaround

None.

Description

HTParse in Lynx through 2.8.9 mishandles the userinfo subcomponent of a
URI, which allows remote attackers to discover cleartext credentials
because they may appear in SNI data or HTTP headers.

Impact

A remote attacker could retrieve HTTP Basic Authentication credentials.

References

https://bugs.archlinux.org/task/71764
https://lists.nongnu.org/archive/html/lynx-dev/2021-08/msg00002.html
https://lynx.invisible-island.net/current/CHANGES.html#index-v2.9.0dev.9
https://github.com/archlinux/svntogit-packages/blob/packages/lynx/trunk/CVE-2021-38165.diff
https://security.archlinux.org/CVE-2021-38165