01 Record

CVE-2011-0520

The compress_add_dlabel_points function in dns/Compress.c in MaraDNS 1.4.03, 1.4.05, and probably other versions allows remote attackers to cause a denial of service (segmentation fault) and possibly

UnratedPUBLISHEDCNA: redhat

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

The compress_add_dlabel_points function in dns/Compress.c in MaraDNS 1.4.03, 1.4.05, and probably other versions allows remote attackers to cause a denial of service (segmentation fault) and possibly

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 5.16% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 92.2% of scored records. A rank, not a probability.
NVD base score: The NVD has published no score for this record
NVD CVSS vector: No NVD score to derive
NVD analysis status: Modified. NVD last modified this record on 2026-06-16.
Red Hat severity: No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2011-01-28 15:00Z15 YR AGO

Last updated

2024-08-06 21:58Z2 YR AGO

Reserved

2011-01-20

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.1

Document digest

e24913345ca585e25903e364a17befac22357c0dce9f4f57c2beda7dd761a6e5

05 Affected products

VendorProductVersionsPlatforms

maradnsmaradnsNot specified—

06 References

www.vupen.comADV-2011-0699http://www.vupen.com/english/advisories/2011/0699vdb-entryx_refsource_VUPEN
bugs.debian.orghttp://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610834x_refsource_CONFIRM
www.openwall.com[oss-security] 20110123 CVE request: MaraDNS DoS via long querieshttp://www.openwall.com/lists/oss-security/2011/01/24/1mailing-listx_refsource_MLIST
www.openwall.com[oss-security] 20110124 Re: CVE request: MaraDNS DoS via long querieshttp://www.openwall.com/lists/oss-security/2011/01/24/6mailing-listx_refsource_MLIST
exchange.xforce.ibmcloud.commaradns-compressadddlabelpoints-bo(64885)https://exchange.xforce.ibmcloud.com/vulnerabilities/64885vdb-entryx_refsource_XF
www.debian.orgDSA-2196http://www.debian.org/security/2011/dsa-2196vendor-advisoryx_refsource_DEBIAN
secunia.com43107http://secunia.com/advisories/43107third-party-advisoryx_refsource_SECUNIA
secunia.com43027http://secunia.com/advisories/43027third-party-advisoryx_refsource_SECUNIA
osvdb.org70630http://osvdb.org/70630vdb-entryx_refsource_OSVDB
www.securityfocus.com45966http://www.securityfocus.com/bid/45966vdb-entryx_refsource_BID

07 Fixed in

Debian 11

maradns
Fixed in 1.4.03-1.1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.