Vulnerability in University Of Cambridge Exim
CVE-2003-0743
Heap-based buffer overflow in smtp_in.c for Exim 3 (exim3) before 3.36 and Exim 4 (exim4) before 4.21 may allow remote attackers to execute arbitrary code via an invalid (1) HELO or (2) EHLO argument with a large number of spaces followed by a NULL character and a newline, which is not properly trimmed before the "(no argument given)" string is appended to the buffer.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.057 (92.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.057 · newest: 0.057 · change: 0.000
Affected products
- University Of Cambridge Exim — versions 3.0, 3.3, 3.3.1
Public proof-of-concept exploits
References
- www.debian.org/security/2003/dsa-376 (vendor-advisory, Patch, Vendor Advisory)
- distro.conectiva.com.br/atualizacoes/ (vendor-advisory)
- www.exim.org/pipermail/exim-users/Week-of-Mon-20030811/057720.html (mailing-list)
- www.exim.org/pipermail/exim-announce/2003q3/000094.html
- marc.info/ (mailing-list)
- marc.info/ (mailing-list)
- www.exim.org/pipermail/exim-users/Week-of-Mon-20030811/057809.html (mailing-list)
- packages.debian.org/changelogs/pool/main/e/exim/exim_3.36-13/changelog
- packages.debian.org/changelogs/pool/main/e/exim4/exim4_4.34-10/changelog
Frequently asked questions
- What is CVE-2003-0743?
- CVE-2003-0743 is a vulnerability in University Of Cambridge Exim. Published 2003-10-20.
- Is CVE-2003-0743 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.