CVE-2020-35452

CWE-787 — Out-of-bounds WriteCWE-119 — Buffer Overflow11 documents8 sources
Severity
7.3HIGH
EPSS
10.7%
top 6.68%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Apache Http ServerApache Software Foundation Apache Http ServerDebian Debian Linux+4 more
Timeline
PublishedJun 10
Latest updateMay 24

Description

Apache HTTP Server versions 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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LExploitability: 3.9 | Impact: 3.4

Affected Packages7 packages

▶NVDapache/http_server2.4.0 — 2.4.46
▶Debianapache2< 2.4.46-6+3
▶Ubuntuapache2< 2.4.7-1ubuntu4.22+esm1+1
▶NVDoracle/instantis_enterprisetrack17.1, 17.2, 17.3+2

Also affects: Debian Linux 10.0, 9.0, Fedora 34, 35

🔴Vulnerability Details

5
GHSA
GHSA-77mj-xh9q-fm9j: Apache HTTP Server versions 2↗2022-05-24
▶
OSV
apache2 vulnerabilities↗2021-06-21
▶
OSV
apache2 vulnerabilities↗2021-06-21
▶
CVEList
mod_auth_digest possible stack overflow by one nul byte↗2021-06-10
▶
OSV
CVE-2020-35452: Apache HTTP Server versions 2↗2021-06-10
▶

📋Vendor Advisories

5
Ubuntu
Apache HTTP Server vulnerabilities↗2021-06-21
▶
Ubuntu
Apache HTTP Server vulnerabilities↗2021-06-21
▶
Microsoft
mod_auth_digest possible stack overflow by one nul byte↗2021-06-08
▶
Red Hat
httpd: Single zero byte stack overflow in mod_auth_digest↗2021-06-04
▶
Debian
CVE-2020-35452: apache2 - Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can...↗2020
▶
CVE-2020-35452 (HIGH CVSS 7.3) | Apache HTTP Server versions 2.4.0 t | cvebase.io