CVE-2012-5671
Heap-based buffer overflow in the dkim_exim_query_dns_txt function in dkim.c in Exim 4.70 through 4.80, when DKIM support is enabled and acl_smtp_connect and acl_smtp_rcpt are not set to "warn control
02 Description
Heap-based buffer overflow in the dkim_exim_query_dns_txt function in dkim.c in Exim 4.70 through 4.80, when DKIM support is enabled and acl_smtp_connect and acl_smtp_rcpt are not set to "warn control
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
- 8.38% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 94.9% 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
- Critical. Red Hat's rating for its own products, not a CVSS rating.
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
- 2012-10-31 16:00Z14 YR AGO
- Last updated
- 2024-08-06 21:14Z2 YR AGO
- Reserved
- 2012-10-24
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 3ed1b05892c4b479e2029fdc28db78783615e2fc4ab6e37e6a9f1313c77b2223
05 Affected products
06 References
- secunia.com51115http://secunia.com/advisories/51115
- www.openwall.com[oss-security] 20121027 CVE-2012-5671: Exim <= 4.80 DKIM heap-based buffer overflowhttp://www.openwall.com/lists/oss-security/2012/10/26/5
- secunia.com51155http://secunia.com/advisories/51155
- lists.exim.org[exim-announce] 20121026 Exim 4.80.1 Security Releasehttps://lists.exim.org/lurker/message/20121026.080330.74b9147b.en.html
- www.ubuntu.comUSN-1618-1http://www.ubuntu.com/usn/USN-1618-1
- secunia.com51098http://secunia.com/advisories/51098
- lists.fedoraproject.orgFEDORA-2012-17044http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090900.html
- lists.fedoraproject.orgFEDORA-2012-17085http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090963.html
- secunia.com51153http://secunia.com/advisories/51153
- osvdb.org86616http://osvdb.org/86616
- lists.opensuse.orgopenSUSE-SU-2012:1404http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00018.html
- www.securityfocus.com56285http://www.securityfocus.com/bid/56285
- exchange.xforce.ibmcloud.comexim-dkimeximquerydnstxt-bo(79615)https://exchange.xforce.ibmcloud.com/vulnerabilities/79615
- lists.fedoraproject.orgFEDORA-2012-16899http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091664.html
- www.debian.orgDSA-2566http://www.debian.org/security/2012/dsa-2566
07 Fixed in
Debian 12
- exim4 Fixed in 4.80-5.1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- exim4 Fixed in 4.80-5.1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- exim4 Fixed in 4.80-5.1
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.