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ALSA-2023:6524 — Moderate: dnsmasq security and bug fix update

Affected: AlmaLinux:9: dnsmasq, AlmaLinux:9: dnsmasq-utils

The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.

Security Fix(es):

* dnsmasq: default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 (CVE-2023-28450)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

bdu:2023-02265

Withdrawn: BELL-CVE-2023-28450 — CVE-2023-28450 does not affect BellSoft software

Withdrawn by the publisher.

certfr-2024-avi-0119 — De multiples vulnérabilités ont été découvertes dans les produits Siemens. Certaines d'entr…

certfr-2024-avi-0119

Withdrawn: CLEANSTART-2026-KY78316 — dnsmasqs extract_name() function can be abused to cause a heap buffer overflow, allowing an attacker to inject false DN…

Withdrawn by the publisher.

Affected: CleanStart: dnsmasq

Multiple security vulnerabilities affect the dnsmasq package. dnsmasqs extract_name() function can be abused to cause a heap buffer overflow, allowing an attacker to inject false DNS cache entries, which could result in DNS lookups to redirect to an attacker-controlled IP address, or to cause a DoS. See references for individual vulnerability details.

EUVD-2026-258392

fkie_cve-2023-28450

An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.

GHSA-vgrx-vhjf-p7wv

An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.

gsd-2023-28450

ICSA-24-046-11 — Siemens SCALANCE XCM-/XRM-300

A carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool (heap) memory location beyond the header value sent. This could cause the process to crash.

This issue affects Apache HTTP Server 2.4.54 and earlier. A flaw was found in python. In algorithms with quadratic time complexity using non-binary bases, when using int("text"), a system could take 50ms to parse an int string with 100,000 digits and 5s for 1,000,000 digits (float, decimal, int.from_bytes(), and int() for binary bases 2, 4, 8, 16, and 32 are not affected). The highest threat from this vulnerability is to system availability. A flaw was found in libdnf's signature verification functionality in versions before 0.60.1. This flaw allows an attacker to achieve code execution if they can alter the header information of an RPM package and then trick a user or system into installing it. The highest risk of this vulnerability is to confidentiality, integrity, as well as system availability. An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service. A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the LInux kernel that allows local users to create…

msrc_CVE-2023-28450 — An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should b…

msrc_CVE-2023-28450

openSUSE-SU-2024:12887-1 — dnsmasq-2.89-3.1 on GA media

dnsmasq-2.89-3.1 on GA media

RHSA-2024:1544 — Red Hat Security Advisory: dnsmasq security and bug fix update

dnsmasq: default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources

SUSE-SU-2023:1930-1 — Security update for dnsmasq

Security update for dnsmasq

UBUNTU-CVE-2023-28450

Affected: Ubuntu:Pro:14.04:LTS: dnsmasq, Ubuntu:Pro:16.04:LTS: dnsmasq, Ubuntu:18.04:LTS: dnsmasq, Ubuntu:20.04:LTS: dnsmasq, Ubuntu:22.04:LTS: dnsmasq

An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.

WID-SEC-W-2023-0668 — dnsmasq: Schwachstelle ermöglicht nicht spezifizierten Angriff

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in dnsmasq ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.