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Bug 769758 (CVE-2021-26843) - www-servers/thttpd: Invalid memory allocations (CVE-2021-26843)
Summary: www-servers/thttpd: Invalid memory allocations (CVE-2021-26843)
Status: IN_PROGRESS
Alias: CVE-2021-26843
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
URL: https://github.com/blueness/sthttpd/i...
Whiteboard: B3 [upstream]
Keywords:
Depends on:
Blocks:
 
Reported: 2021-02-09 15:34 UTC by Sam James
Modified: 2021-02-09 15:34 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Sam James archtester gentoo-dev Security 2021-02-09 15:34:20 UTC
Description:
"An issue was discovered in sthttpd through 2.27.1. On systems where the strcpy function is implemented with memcpy, the de_dotdot function may cause a Denial-of-Service (daemon crash) due to overlapping memory ranges being passed to memcpy. This can triggered with an HTTP GET request for a crafted filename. NOTE: this is similar to CVE-2017-10671, but occurs in a different part of the de_dotdot function."