PT-2015-5459 · Chrony+3 · Chrony+3

Miroslav Lichvar · Published 2015-04-12 · Updated 2023-02-13 · CVE-2015-1822

Positive Technologies (AI Summary)

CVSS v2.0

6.5

Medium

Base vector

AV:N/AC:L/Au:S/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions chrony versions prior to 1.31.1

Description The issue allows remote authenticated users to cause a denial of service or possibly execute arbitrary code via a large number of command requests, due to the failure to initialize the last "next" pointer when saving unacknowledged replies to command requests. This can lead to an uninitialized pointer dereference and daemon crash.

Recommendations For versions prior to 1.31.1, update to version 1.31.1 or later to resolve the issue. As a temporary workaround, consider restricting the number of command requests to minimize the risk of exploitation.

Fix

DoS

Weakness Enumeration

CWE-17

Related Identifiers

ALT-PU-2015-2089

CESA-2015_2241

CVE-2015-1822

DLA-193-1

DSA-3222-1

MGASA-2015-0163

RHSA-2015:2241

RHSA-2015_2241

Affected Products

Alt Linux

Centos

Red Hat

Chrony

References · 36

• https://nvd.nist.gov/vuln/detail/CVE-2015-1822 · Security Note
• https://osv.dev/vulnerability/CVE-2015-1822 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2015-1822 · Security Note
• http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html · Vendor Advisory
• https://advisories.mageia.org/MGASA-2015-0163.html · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2015-1822 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1821 · Security Note
• https://security.gentoo.org/glsa/201507-01 · Vendor Advisory
• https://debian.org/security/2015/dsa-3222 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3222-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2015-1822 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/chrony · Vendor Advisory
• https://security-tracker.debian.org/tracker/DSA-3222-1 · Vendor Advisory
• http://debian.org/security/2015/dsa-3222 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1853 · Security Note