PT-2018-3634 · Apache+3 · Apache Http Server+3

Published 2018-03-21 · Updated 2021-06-06 · CVE-2018-1302

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Apache HTTP Server versions prior to 2.4.33

Description The issue is related to an HTTP/2 stream vulnerability in the Apache HTTP Server, which is caused by incorrect handling of a NULL pointer. This could potentially allow a remote attacker to cause a denial of service. The vulnerability is considered low risk due to the difficulty in triggering it in usual configurations. The memory pools maintained by the server make exploitation hard, and it was not reproducible outside debug builds.

Recommendations For versions prior to 2.4.33, update to version 2.4.33 or later to resolve the issue. As a temporary workaround, consider restricting access to HTTP/2 streams until the update is applied.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2018-1519

BDU:2021-01454

CVE-2018-1302

MGASA-2018-0460

RHSA-2019:0367

SUSE-SU-2018:1161-1

SUSE-SU-2018:1161-2

USN-3783-1

Affected Products

Alt Linux

Apache Http Server

Suse

Ubuntu

References · 89

• https://bdu.fstec.ru/vul/2018-01145 · Security Note
• https://bdu.fstec.ru/vul/2019-04309 · Security Note
• https://ubuntu.com/security/CVE-2018-1333 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1303 · Security Note
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210611SE16 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-1302 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-1302 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2019:0367 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-1302 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-11763 · Vendor Advisory
• https://httpd.apache.org/security/vulnerabilities_24.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-04105 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-1302 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1312 · Security Note
• https://access.redhat.com/errata/RHSA-2019:0366 · Vendor Advisory