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Security Bulletin: Vulnerabilities CVE-2020-1927 and CVE-2020-1934 in Apache HTTP Server affect IBM i

Security Bulletin


Apache HTTP Server is supported on IBM i. IBM i has addressed the applicable CVEs.

Vulnerability Details

CVEID:   CVE-2020-1927
DESCRIPTION:   Apache HTTP Server could allow a remote attacker to conduct phishing attacks, caused by an open redirect vulnerability in the mod_rewrite module. An attacker could exploit this vulnerability using a specially-crafted URL to redirect a victim to arbitrary Web sites.
CVSS Base score: 7.4
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N)

CVEID:   CVE-2020-1934
DESCRIPTION:   Apache HTTP Server could allow a remote attacker to execute arbitrary code on the system, caused by the use of uninitialized value in mod_proxy_ftp. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.
CVSS Base score: 8.1
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
IBM i7.4
IBM i7.3
IBM i7.2


The issue can be fixed by applying a PTF to IBM i.
Releases 7.4, 7.3, and 7.2 of IBM i are supported and will be fixed.

The IBM i PTF numbers containing the fix for the CVEs follow.  Future Group PTFs for HTTP Server will also contain the fixes for this CVE.

Release 7.4 -  SI73415
Release 7.3 -  SI72840
Release 7.2 -  SI72748

Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.

Workarounds and Mitigations


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Change History

8 June 2020: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.


Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location


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Document Information

Modified date:
10 June 2020