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Vulnerability record · CVE-2010-0562 · published 8 February 2010

CVE-2010-0562: Fetchmail memory buffer overflow vulnerability

Fetchmail · Fetchmail

The sdump function in sdump.c in fetchmail 6.3.11, 6.3.12, and 6.3.13, when running in verbose mode on platforms for which char is signed, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via an SSL X.509 certificate containing non-printable characters with the high bit set, which triggers a heap-based buffer overflow during escaping.

6.8 CVSS 2.0 Medium EPSS 2.5% · top 16.0% CWE-119 · Memory buffer overflow
6.8CVSS 2.0 base score
2.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References
16 Jun 2026Last modified by NVD

Description

The sdump function in sdump.c in fetchmail 6.3.11, 6.3.12, and 6.3.13, when running in verbose mode on platforms for which char is signed, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via an SSL X.509 certificate containing non-printable characters with the high bit set, which triggers a heap-based buffer overflow during escaping.

AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://mknod.org/svn/fetchmail/branches/BRANCH_6-3/fetchmail-SA-2010-01.txt
http://osvdb.org/62114
http://secunia.com/advisories/38391 Vendor Advisory
http://www.fetchmail.info/fetchmail-SA-2010-01.txt Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:037
http://www.securityfocus.com/bid/38088
http://www.securitytracker.com/id?1023543
http://www.vupen.com/english/advisories/2010/0296 Vendor Advisory
http://mknod.org/svn/fetchmail/branches/BRANCH_6-3/fetchmail-SA-2010-01.txt
http://osvdb.org/62114
http://secunia.com/advisories/38391 Vendor Advisory
http://www.fetchmail.info/fetchmail-SA-2010-01.txt Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:037
http://www.securityfocus.com/bid/38088
http://www.securitytracker.com/id?1023543
http://www.vupen.com/english/advisories/2010/0296 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2010-0562), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.