CVE-2012-1836 json
Heap-based buffer overflow in dns.cpp in InspIRCd 2.0.5 might allow remote attackers to execute arbitrary code via a crafted DNS query that…
published 2012-03-22 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-1846
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 6.7%
- EPSS 6.7% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
Heap-based buffer overflow in dns.cpp in InspIRCd 2.0.5 might allow remote attackers to execute arbitrary code via a crafted DNS query that uses compression.
Patch / fix
- inspircd Debian 13, Debian 12 2.0.5-0.1
debian advisories DEBIAN-CVE-2012-1836
- github.com/inspircd/inspircd@fe7dbd2 commit
- kb.cert.org/vuls/id/212651 advisory
Exploit prediction
6.73% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com https://github.com/inspircd/inspircd/commit/fe7dbd2c104c37f6f3af7d9f1646a3c332aea4a4 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
github.com
/inspircd/inspircd/commit/fe7dbd2c104c37f6f3af7d9f1646a3c332aea4a4
exploit, patch
-
kb.cert.org
/vuls/id/212651
third-party-advisory, patch, us-government-resource
-
debian.org
/security/2012/dsa-2448
vendor-advisory
-
securityfocus.com
/bid/52561
vdb-entry
-
osvdb.org
/80263
vdb-entry
-
exchange.xforce.ibmcloud.com
/vulnerabilities/74157
vdb-entry
-
secunia.com
/advisories/48474
third-party-advisory
Sources
- CVE List CVE-2012-1836
- NVD CVE-2012-1836
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