security flaw
Published Aug 5, 2003
5.0
MEDIUMCVSS 2.0
EPSS 21.26%
Description
The address parser code in Postfix 1.1.12 and earlier allows remote attackers to cause a denial of service (lock) via (1) a malformed envelope address to a local host that would generate a bounce and contains the ".!" string in the MAIL FROM or Errors-To headers, which causes nqmgr to lock up, or (2) via a valid MAIL FROM with a RCPT TO containing a ".!" string, which causes an instance of the SMTP listener to lock up.
Affected products
No data.
- 1.0.21
- 1.1.11
- 1.1.12
- 1999-09-06
- 1999-12-31
- 2000-02-28
- 2001-11-15
- 7.0
- 8.0
No data.
Red Hat Linux 7.3
n/a
Fixed · RHSA-2003:251
Red Hat Linux 8.0
n/a
Fixed · RHSA-2003:251
Red Hat Linux 9
n/a
Fixed · RHSA-2003:251
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Linux 7.3 | n/a | Fixed | RHSA-2003:251 |
| Red Hat Linux 8.0 | n/a | Fixed | RHSA-2003:251 |
| Red Hat Linux 9 | n/a | Fixed | RHSA-2003:251 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 21.26% (0.21261) | 97.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 21.26% (0.21261) | 97.27th | v5 (v2026.06.15) |
| Apr 9, 2025 | 57.49% (0.57494) | 97.98th | v4 (v2025.03.14) |
| Mar 30, 2025 | 54.40% (0.54400) | 97.81th | v4 (v2025.03.14) |
| Mar 29, 2025 | 48.19% (0.48194) | 96.68th | v4 (v2025.03.14) |
| Mar 17, 2025 | 54.40% (0.54400) | 97.77th | v4 (v2025.03.14) |
| Dec 17, 2024 | 19.30% (0.19301) | 96.27th | v3 (v2023.03.01) |
| Dec 13, 2024 | 4.02% (0.04023) | 92.41th | v3 (v2023.03.01) |
| Aug 20, 2023 | 7.70% (0.07700) | 93.32th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.71% (0.06708) | 92.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 12.57% (0.12567) | 95.52th | v2 (v2022.01.01) |
| Apr 1, 2022 | 12.57% (0.12567) | 95.18th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.57% (0.12567) | 90.03th | v2 (v2022.01.01) |
No CWE recorded.
References (17)
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000717 vendor-advisoryx_refsource_CONECTIVA
- http://lists.grok.org.uk/pipermail/full-disclosure/2003-August/007693.html mailing-listx_refsource_FULLDISC
- http://marc.info/?l=bugtraq&m=106001525130257&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=bugtraq&m=106029188614704&w=2 vendor-advisoryx_refsource_TRUSTIX
- http://secunia.com/advisories/9433 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2003/dsa-363 vendor-advisoryx_refsource_DEBIANPatchVendor Advisory
- http://www.kb.cert.org/vuls/id/895508 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.linuxsecurity.com/advisories/engarde_advisory-3517.html vendor-advisoryx_refsource_ENGARDE
- http://www.mandriva.com/security/advisories?name=MDKSA-2003:081 vendor-advisoryx_refsource_MANDRAKE
- http://www.novell.com/linux/security/advisories/2003_033_postfix.html vendor-advisoryx_refsource_SUSE
- http://www.redhat.com/support/errata/RHSA-2003-251.html vendor-advisoryx_refsource_REDHATPatchVendor Advisory
- http://www.securityfocus.com/bid/8333 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2003-0540 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1617046 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2003-0540
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A544 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2003-0540
Change history (0)
No recorded changes yet.