Vulnerability Details : CVE-2020-12460
OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 has improper null termination in the function opendmarc_xml_parse that can result in a one-byte heap overflow in opendmarc_xml when parsing a specially crafted DMARC aggregate report. This can cause remote memory corruption when a '\0' byte overwrites the heap metadata of the next chunk and its PREV_INUSE flag.
Vulnerability category: Memory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2020-12460
Probability of exploitation activity in the next 30 days: 1.00%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 82 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-12460
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-12460
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-12460
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JHDKMCZGE3W4XBP76NLI2Q7IOZHXLD4A/
[SECURITY] Fedora 34 Update: opendmarc-1.4.0-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2D4JGHMALEJEWWG56DKR5OZB22TK7W5B/
[SECURITY] Fedora 33 Update: opendmarc-1.4.1-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://security.gentoo.org/glsa/202011-02
OpenDMARC: Heap-based buffer overflow (GLSA 202011-02) — Gentoo securityThird Party Advisory
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https://sourceforge.net/projects/opendmarc/
opendmarc download | SourceForge.netProduct;Third Party Advisory
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https://lists.debian.org/debian-lts-announce/2021/04/msg00026.html
[SECURITY] [DLA 2639-1] opendmarc security updateMailing List;Third Party Advisory
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https://github.com/trusteddomainproject/OpenDMARC/issues/64
Memory corruption in opendmarc_xml() · Issue #64 · trusteddomainproject/OpenDMARC · GitHubExploit;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/
[SECURITY] Fedora 34 Update: opendmarc-1.4.1-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
Products affected by CVE-2020-12460
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:a:trusteddomain:opendmarc:*:*:*:*:*:*:*:*
- cpe:2.3:a:trusteddomain:opendmarc:1.4.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:trusteddomain:opendmarc:1.4.0:beta0:*:*:*:*:*:*