The sdump function in sdump.c in fetchmail 6.3.11, 6.3.12, and 6.3.13, when running in…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2010-0562
- 2026-10-03 Alias added: GHSA-7xwr-ggr5-9p9v
References
More Fetchmail vulnerabilities
- TI-2001-00964 Fetchmail (aka fetchmail-ssl) before 5.8.17 allows a remote malicious (1) IMAP server or… CVSS 2.0HIGH 10.0
- TI-2001-00101 Vulnerability in fetchmail 5.5.0-2 and earlier in the AUTHENTICATE GSSAPI command. CVSS 2.0HIGH 10.0
- TI-2001-00782 A buffer overflow in Linux fetchmail before 5.8.6 allows remote attackers to execute… CVSS 2.0HIGH 7.5
- TI-2006-05756 fetchmail 6.3.5 and 6.3.6 before 6.3.6-rc4, when refusing a message delivered via the mda… CVSS 2.0HIGH 7.8
- TI-2006-05650 fetchmail before 6.3.6-rc4 does not properly enforce TLS and may transmit cleartext… CVSS 2.0HIGH 7.8
- TI-2002-01289 Heap-based buffer overflow in Fetchmail 6.1.3 and earlier does not account for the "@"… CVSS 2.0HIGH 7.5
Sources
- CVE-2010-0562 · CVE Program
- CVE-2010-0562 · NVD
- FIRST EPSS
- GHSA-7xwr-ggr5-9p9v · GitHub Advisory Database · CC BY 4.0
- CVE-2010-0562 · Red Hat security data · CC BY 4.0
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