Bug 2045091 (CVE-2022-22707) - CVE-2022-22707 lighttpd: mod_extforward_Forwarded function of the mod_extforward plugin has a stack-based buffer overflow
Summary: CVE-2022-22707 lighttpd: mod_extforward_Forwarded function of the mod_extforw...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2022-22707
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2045093 2045092
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-01-25 15:26 UTC by Marian Rehak
Modified: 2022-01-25 19:28 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-01-25 16:00:47 UTC

Attachments (Terms of Use)

Description Marian Rehak 2022-01-25 15:26:30 UTC 
In lighttpd 1.4.46 through 1.4.63, the mod_extforward_Forwarded function of the mod_extforward plugin has a stack-based buffer overflow (4 bytes representing -1), as demonstrated by remote denial of service (daemon crash) in a non-default configuration. The non-default configuration requires handling of the Forwarded header in a somewhat unusual manner. Also, a 32-bit system is much more likely to be affected than a 64-bit system.

Reference:

https://redmine.lighttpd.net/issues/3134
https://www.debian.org/security/2022/dsa-5040
Comment 1 Marian Rehak 2022-01-25 15:26:48 UTC 
Created lighttpd tracking bugs for this issue:

Affects: epel-all [bug 2045093]
Affects: fedora-all [bug 2045092]
Comment 2 Product Security DevOps Team 2022-01-25 16:00:45 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
Note You need to log in before you can comment on or make changes to this bug.