Exploited
critical
9.8
CWE
119 787
Advisory Published
CVE Published
Updated

CVE-2010-4344: Exim Heap-Based Buffer Overflow Vulnerability

First published: Thu Dec 09 2010(Updated: )

Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session that includes two MAIL commands in conjunction with a large message containing crafted headers, leading to improper rejection logging.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
sa-exim
sa-exim=2.11
sa-exim=4.66
sa-exim=4.10
sa-exim=3.16
sa-exim=3.21
sa-exim=3.01
sa-exim=3.31
sa-exim=4.24
sa-exim=3.33
sa-exim=3.30
sa-exim=4.30
sa-exim=4.21
sa-exim=4.03
sa-exim=4.51
sa-exim=4.67
sa-exim=4.63
sa-exim=4.00
sa-exim=4.43
sa-exim=4.22
sa-exim=3.10
sa-exim=4.40
sa-exim=4.52
sa-exim=3.36
sa-exim=3.15
sa-exim=4.60
sa-exim=4.61
sa-exim=2.12
sa-exim=4.68
sa-exim=4.54
sa-exim=4.02
sa-exim=4.23
sa-exim=4.01
sa-exim=3.34
sa-exim<=4.69
sa-exim=3.00
sa-exim=4.62
sa-exim=3.02
sa-exim=3.03
sa-exim=3.12
sa-exim=3.20
sa-exim=4.12
sa-exim=3.22
sa-exim=4.32
sa-exim=4.11
sa-exim=4.42
sa-exim=4.05
sa-exim=4.31
sa-exim=3.14
sa-exim=3.11
sa-exim=3.35
sa-exim=4.44
sa-exim=4.14
sa-exim=4.64
sa-exim=4.04
sa-exim=4.41
sa-exim=4.20
sa-exim=2.10
sa-exim=4.65
sa-exim=4.53
sa-exim=4.33
sa-exim=3.13
sa-exim=4.50
sa-exim=3.32
sa-exim=4.34
sa-exim<4.70
openSUSE=11.1
openSUSE=11.2
openSUSE=11.3
Debian=5.0
Ubuntu=6.06
Ubuntu=8.04
Ubuntu=9.10

Remedy

http://bugs.exim.org/show_bug.cgi?id=787

Remedy

http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b

Remedy

http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html

Remedy

http://www.osvdb.org/69685

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2010-4344?

    CVE-2010-4344 is rated as a high severity vulnerability that allows remote code execution due to a heap-based buffer overflow.

  • How do I fix CVE-2010-4344?

    To fix CVE-2010-4344, upgrade Exim to version 4.70 or later.

  • What systems are affected by CVE-2010-4344?

    CVE-2010-4344 affects various versions of Exim prior to 4.70, including Exim 2.11 through 4.69.

  • Can CVE-2010-4344 be exploited remotely?

    Yes, CVE-2010-4344 can be exploited remotely through an SMTP session with specially crafted MAIL commands.

  • What type of vulnerability is CVE-2010-4344?

    CVE-2010-4344 is classified as a buffer overflow vulnerability.

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