BIND: Multiple vulnerabilities
1.
Gentoo Linux Security Advisory
Version Information
| Advisory Reference |
GLSA 201209-04 / bind |
| Release Date |
September 24, 2012 |
| Latest Revision |
September 24, 2012: 1 |
| Impact |
normal |
| Exploitable |
remote |
| Package |
Vulnerable versions |
Unaffected versions |
Architecture(s) |
| net-dns/bind |
<
9.9.1_p3 |
>=
9.9.1_p3 |
All supported architectures
|
Related bugreports:
#402661, #419637, #427966, #434876
Synopsis
Multiple vulnerabilities have been found in BIND, the worst of
which may allow remote Denial of Service.
2.
Impact Information
Background
BIND is the Berkeley Internet Name Domain Server.
Description
Multiple vulnerabilities have been discovered in BIND:
- Domain names are not properly revoked due to an error in the cache
update policy (CVE-2012-1033).
- BIND accepts records with zero-length RDATA fields (CVE-2012-1667).
- An assertion failure from the failing-query cache could occur when
DNSSEC validation is enabled (CVE-2012-3817).
- A memory leak may occur under high TCP query loads (CVE-2012-3868).
- An assertion error can occur when a query is performed for a record
with RDATA greater than 65535 bytes (CVE-2012-4244).
Impact
A remote attacker may be able to cause a Denial of Service condition or
keep domain names resolvable after it has been deleted from registration.
3.
Resolution Information
Workaround
There is no known workaround at this time.
Resolution
All BIND users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/bind-9.9.1_p3"
|
4.
References
|
