Multiple vulnerabilities have been found in c-ares, the worst of which could result in the loss of confidentiality or integrity.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/c-ares | * | < 1.19.0 | >= 1.19.0 |
c-ares is a C library for asynchronous DNS requests (including name resolves).
Multiple vulnerabilities have been discovered in c-ares. Please review the CVE identifiers referenced below for details.
Please review the referenced CVE identifiers for details.
There is no known workaround at this time.
All c-ares users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/c-ares-1.19.0"
Multiple vulnerabilities have been discovered in c-ares the worst of which could result in Denial of Service.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/c-ares | * | < 1.19.1 | >= 1.19.1 |
c-ares is a C library for asynchronous DNS requests (including name resolves).
Multiple vulnerabilities have been discovered in c-ares. Please review the CVE identifiers referenced below for details.
Please review the referenced CVE identifiers for details.
There is no known workaround at this time.
All c-ares users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/c-ares-1.19.1"
A Denial of Service vulnerability was discovered in c-ares.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/c-ares | * | < 1.17.1 | >= 1.17.1 |
c-ares is an asynchronous resolver library.
It was discovered that c-ares incorrectly handled certain DNS requests.
A remote attacker, able to trigger a DNS request for a host of their choice by an application linked against c-ares, could possibly cause a Denial of Service condition.
There is no known workaround at this time.
All c-ares users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/c-ares-1.17.1"
A heap-based buffer overflow in c-ares might allow remote attackers to cause a Denial of Service condition.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/c-ares | * | < 1.12.0 | >= 1.12.0 |
c-ares is a C library for asynchronous DNS requests (including name resolves).
A hostname with an escaped trailing dot (such as “hello\.”) would have its size calculated incorrectly leading to a single byte written beyond the end of a buffer on the heap.
A remote attacker, able to provide a specially crafted hostname to an application using c-ares, could potentially cause a Denial of Service condition.
There is no known workaround at this time.
All c-ares users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/c-ares-1.12.0"