CVE-2015-1821

Heap-based buffer overflow in chrony before 1.31.1 allows remote authenticated users to cause a denial of service chronyd crash or possibly execute arbitrary code by configuring the 1 NTP or 2 cmdmon access with a subnet size that is indivisible by four and an address with a nonzero bit in the...

CVE-2015-1821

CVE-2015-1821 affects the chrony project (chronyd/chronyc). The issue is an out-of-bounds write flaw in how chrony stores certain addresses when configuring NTP or cmdmon access, triggered by a subnet size not divisible by four and an address with a nonzero bit in the subnet remainder. This can a...

CVE-2015-1821

Heap-based buffer overflow in chrony before 1.31.1 allows remote authenticated users to cause a denial of service chronyd crash or possibly execute arbitrary code by configuring the 1 NTP or 2 cmdmon access with a subnet size that is indivisible by four and an address with a nonzero bit in the...

Updated ntp packages fix security vulnerabilities

Updated ntp packages fix security vulnerabilities: The symmetric-key feature in the receive function in ntpproto.c in ntpd in NTP before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by omitting th...

MGASA-2015-0152 Updated ntp packages fix security vulnerabilities

Updated ntp packages fix security vulnerabilities: The symmetric-key feature in the receive function in ntpproto.c in ntpd in NTP before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by omitting th...

Ubuntu 14.04 LTS : NTP vulnerabilities (USN-2567-1)

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2567-1 advisory. Miroslav Lichvar discovered that NTP incorrectly validated MAC fields. A remote attacker could possibly use this issue to bypass authentication and spoof...

Debian DSA-3222-1 : chrony - security update

Miroslav Lichvar of Red Hat discovered multiple vulnerabilities in chrony, an alternative NTP client and server : - CVE-2015-1821 Using particular address/subnet pairs when configuring access control would cause an invalid memory write. This could allow attackers to cause a denial of service cras...

Ubuntu: Security Advisory (USN-2567-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Debian DSA-3223-1 : ntp - security update

Multiple vulnerabilities were discovered in ntp, an implementation of the Network Time Protocol : - CVE-2015-1798 When configured to use a symmetric key with an NTP peer, ntpd would accept packets without MAC as if they had a valid MAC. This could allow a remote attacker to bypass the packet...

USN-2567-1: NTP vulnerabilities

Miroslav Lichvar discovered that NTP incorrectly validated MAC fields. A remote attacker could possibly use this issue to bypass authentication and spoof packets. CVE-2015-1798 Miroslav Lichvar discovered that NTP incorrectly handled certain invalid packets. A remote attacker could possibly use...

Debian DLA-192-1 : ntp security update

Brief introduction CVE-2015-1798 When ntpd is configured to use a symmetric key to authenticate a remote NTP server/peer, it checks if the NTP message authentication code MAC in received packets is valid, but not if there actually is any MAC included. Packets without a MAC are accepted as if they...

Mandriva Linux Security Advisory : ntp (MDVSA-2015:202)

Multiple vulnerabilities has been found and corrected in ntp : The symmetric-key feature in the receive function in ntpproto.c in ntpd in NTP before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by...

[SECURITY] [DSA 3223-1] ntp security update

------------------------------------------------------------------------- Debian Security Advisory DSA-3223-1 [email protected] http://www.debian.org/security/ Alessandro Ghedini April 12, 2015 http://www.debian.org/security/faq -...

[SECURITY] [DSA 3222-1] chrony security update

------------------------------------------------------------------------- Debian Security Advisory DSA-3222-1 [email protected] http://www.debian.org/security/ Alessandro Ghedini April 12, 2015 http://www.debian.org/security/faq -...

DSA-3222-1 chrony - security update

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Debian Security Advisory DSA 3222-1 (chrony - security update)

Miroslav Lichvar of Red Hat discovered multiple vulnerabilities in chrony, an alternative NTP client and server: CVE-2015-1821 Using particular address/subnet pairs when configuring access control would cause an invalid memory write. This could allow attackers to cause a denial of service crash o...

Debian Security Advisory DSA 3223-1 (ntp - security update)

Multiple vulnerabilities were discovered in ntp, an implementation of the Network Time Protocol: CVE-2015-1798 When configured to use a symmetric key with an NTP peer, ntpd would accept packets without MAC as if they had a valid MAC. This could allow a remote attacker to bypass the packet...

DSA-3223-1 ntp - security update

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DLA-193-1 chrony - security update

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Debian: Security Advisory (DSA-3222-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...