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List:       oss-security
Subject:    [oss-security] CVE-2020-35452: Apache httpd: mod_auth_digest possible stack overflow by one nul byte
From:       Christophe JAILLET <jailletc36 () apache ! org>
Date:       2021-06-09 21:11:00
Message-ID: 1622544226.GVTSKDOC () httpd ! apache ! org
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CVE-2020-35452: mod_auth_digest possible stack overflow by one nul byte

Severity: low

Vendor: The Apache Software Foundation

Versions Affected:
httpd 2.4.0 to 2.4.46

Description:
Apache HTTP Server 2.4.0 to 2.4.46
A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no \
report of this overflow being exploitable, nor the Apache HTTP Server team could create one, \
though some particular compiler and/or compilation option might make it possible, with limited \
consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow  
Mitigation:
None

Credit:
This issue was discovered and reported by GHSL team member @antonio-morales (Antonio Morales)

References:
https://httpd.apache.org/security/vulnerabilities_24.html


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