Veracode Vulnerability DatabaseVERACODE:29044Arbitrary Code Execution
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
dnsmasq is vulnerable to arbitrary code execution. A heap-based buffer overflow in rfc1035.c:extract_name() due to the lack of length checks, which could be abused occurs when DNSSEC is enabled and before the receiving DNS entries are validated. A remote attacker who can create valid DNS replies is able to exploit the vulnerability execute arbitrary code via memcpy() using negative size in sort_rrset().
References
bugzilla.redhat.com/show_bug.cgi?id=1891568
lists.debian.org/debian-lts-announce/2021/03/msg00027.html
lists.fedoraproject.org/archives/list/[email protected]/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/
lists.fedoraproject.org/archives/list/[email protected]/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/
secdb.alpinelinux.org/v3.12/main.yaml
security.gentoo.org/glsa/202101-17
www.debian.org/security/2021/dsa-4844
www.jsof-tech.com/disclosures/dnspooq/
Related
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C