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RedHat Update for cyrus-imapd RHSA-2011:0859-01

🗓️ 10 Jun 2011 00:00:00Reported by Copyright (C) 2011 Greenbone AGType 
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The remote host is missing an update for the 'cyrus-imapd' package(s) announced via the referenced advisory. The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and Sieve support. It was discovered that cyrus-imapd did not flush the received commands buffer after switching to TLS encryption for IMAP, LMTP, NNTP, and POP3 sessions. A man-in-the-middle attacker could use this flaw to inject protocol commands into a victim's TLS session initialization messages. This could lead to those commands being processed by cyrus-imapd, potentially allowing the attacker to steal the victim's mail or authentication credentials. Users of cyrus-imapd are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, cyrus-imapd will be restarted automatically

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Code
# SPDX-FileCopyrightText: 2011 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2011-June/msg00005.html");
  script_oid("1.3.6.1.4.1.25623.1.0.870443");
  script_version("2024-03-21T05:06:54+0000");
  script_tag(name:"last_modification", value:"2024-03-21 05:06:54 +0000 (Thu, 21 Mar 2024)");
  script_tag(name:"creation_date", value:"2011-06-10 16:29:51 +0200 (Fri, 10 Jun 2011)");
  script_tag(name:"cvss_base", value:"5.1");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:H/Au:N/C:P/I:P/A:P");
  script_xref(name:"RHSA", value:"2011:0859-01");
  script_cve_id("CVE-2011-1926");
  script_name("RedHat Update for cyrus-imapd RHSA-2011:0859-01");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'cyrus-imapd'
  package(s) announced via the referenced advisory.");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_family("Red Hat Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms", re:"ssh/login/release=RHENT_(5|4)");
  script_tag(name:"affected", value:"cyrus-imapd on Red Hat Enterprise Linux (v. 5 server),
  Red Hat Enterprise Linux AS version 4,
  Red Hat Enterprise Linux ES version 4,
  Red Hat Enterprise Linux WS version 4");
  script_tag(name:"solution", value:"Please Install the Updated Packages.");
  script_tag(name:"insight", value:"The cyrus-imapd packages contain a high-performance mail server with IMAP,
  POP3, NNTP, and Sieve support.

  It was discovered that cyrus-imapd did not flush the received commands
  buffer after switching to TLS encryption for IMAP, LMTP, NNTP, and POP3
  sessions. A man-in-the-middle attacker could use this flaw to inject
  protocol commands into a victim's TLS session initialization messages. This
  could lead to those commands being processed by cyrus-imapd, potentially
  allowing the attacker to steal the victim's mail or authentication
  credentials. (CVE-2011-1926)

  Users of cyrus-imapd are advised to upgrade to these updated packages,
  which contain a backported patch to correct this issue. After installing
  the update, cyrus-imapd will be restarted automatically.");
  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release) exit(0);

res = "";

if(release == "RHENT_5")
{

  if ((res = isrpmvuln(pkg:"cyrus-imapd", rpm:"cyrus-imapd~2.3.7~7.el5_6.4", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"cyrus-imapd-debuginfo", rpm:"cyrus-imapd-debuginfo~2.3.7~7.el5_6.4", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"cyrus-imapd-devel", rpm:"cyrus-imapd-devel~2.3.7~7.el5_6.4", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"cyrus-imapd-perl", rpm:"cyrus-imapd-perl~2.3.7~7.el5_6.4", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"cyrus-imapd-utils", rpm:"cyrus-imapd-utils~2.3.7~7.el5_6.4", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}


if(release == "RHENT_4")
{

  if ((res = isrpmvuln(pkg:"cyrus-imapd", rpm:"cyrus-imapd~2.2.12~15.el4", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"cyrus-imapd-debuginfo", rpm:"cyrus-imapd-debuginfo~2.2.12~15.el4", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"cyrus-imapd-devel", rpm:"cyrus-imapd-devel~2.2.12~15.el4", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"cyrus-imapd-murder", rpm:"cyrus-imapd-murder~2.2.12~15.el4", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"cyrus-imapd-nntp", rpm:"cyrus-imapd-nntp~2.2.12~15.el4", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"cyrus-imapd-utils", rpm:"cyrus-imapd-utils~2.2.12~15.el4", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"perl-Cyrus", rpm:"perl-Cyrus~2.2.12~15.el4", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}

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