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Fencer Vulns
medium 4.4

CVE-2009-2632 json

Buffer overflow in the SIEVE script component (sieve/script.c), as used in cyrus-imapd in Cyrus IMAP Server 2.2.13 and 2.3.14, and Dovecot…

published 2009-09-08 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2626

cvss
4.4
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

Buffer overflow in the SIEVE script component (sieve/script.c), as used in cyrus-imapd in Cyrus IMAP Server 2.2.13 and 2.3.14, and Dovecot 1.0 before 1.0.4 and 1.1 before 1.1.7, allows local users to execute arbitrary code and read or modify arbitrary messages via a crafted SIEVE script, related to the incorrect use of the sizeof operator for determining buffer length, combined with an integer signedness error.

Patch / fix

  • dovecot Debian 14, Debian 13, Debian 12 1:1.2.1-1

debian advisories DEBIAN-CVE-2009-2632

  • cyrus-imapd RHEL 4 2.2.12-10.el4_8.4
  • cyrus-imapd RHEL 5 2.3.7-7.el5_4.3
  • perl-Cyrus RHEL 4 2.2.12-10.el4_8.4
  • cyrus-imapd-nntp RHEL 4 2.2.12-10.el4_8.4
  • cyrus-imapd-perl RHEL 5 2.3.7-7.el5_4.3
  • cyrus-imapd-utils RHEL 4 2.2.12-10.el4_8.4
  • cyrus-imapd-utils RHEL 5 2.3.7-7.el5_4.3
  • cyrus-imapd-murder RHEL 4 2.2.12-10.el4_8.4

red hat advisories RHSA-2009:1459

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-2632 updated cvss 6.5

cyrus-imapd: buffer overflow in cyrus sieve

  • Red Hat Enterprise Linux (v. 5 server) cyrus-imapd 2.3.7-7.el5_4.3, cyrus-imapd-perl 2.3.7-7.el5_4.3, cyrus-imapd-utils 2.3.7-7.el5_4.3 Red Hat Enterprise Linux AS version 4 perl-Cyrus 2.2.12-10.el4_8.4, cyrus-imapd 2.2.12-10.el4_8.4, cyrus-imapd-nntp 2.2.12-10.el4_8.4, cyrus-imapd-utils 2.2.12-10.el4_8.4, cyrus-imapd-murder 2.2.12-10.el4_8.4 Red Hat Enterprise Linux Desktop version 4 perl-Cyrus 2.2.12-10.el4_8.4, cyrus-imapd 2.2.12-10.el4_8.4, cyrus-imapd-nntp 2.2.12-10.el4_8.4, cyrus-imapd-utils 2.2.12-10.el4_8.4, cyrus-imapd-murder 2.2.12-10.el4_8.4 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) cyrus-imapd 2.3.7-7.el5_4.3, cyrus-imapd-perl 2.3.7-7.el5_4.3, cyrus-imapd-utils 2.3.7-7.el5_4.3 Red Hat Enterprise Linux ES version 4 perl-Cyrus 2.2.12-10.el4_8.4, cyrus-imapd 2.2.12-10.el4_8.4, cyrus-imapd-nntp 2.2.12-10.el4_8.4, cyrus-imapd-utils 2.2.12-10.el4_8.4, cyrus-imapd-murder 2.2.12-10.el4_8.4 Red Hat Enterprise Linux WS version 4 perl-Cyrus 2.2.12-10.el4_8.4, cyrus-imapd 2.2.12-10.el4_8.4, cyrus-imapd-nntp 2.2.12-10.el4_8.4, cyrus-imapd-utils 2.2.12-10.el4_8.4, cyrus-imapd-murder 2.2.12-10.el4_8.4
    fixed: vendor fix RHSA-2009:1459

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.