ID CVE-2015-8614
Summary Multiple stack-based buffer overflows in the (1) conv_jistoeuc, (2) conv_euctojis, and (3) conv_sjistoeuc functions in codeconv.c in Claws Mail before 3.13.1 allow remote attackers to have unspecified impact via a crafted email, involving Japanese character set conversion.
References
Vulnerable Configurations
  • cpe:2.3:a:claws-mail:claws-mail:3.13.0
    cpe:2.3:a:claws-mail:claws-mail:3.13.0
  • openSUSE Leap 42.1
    cpe:2.3:o:opensuse:leap:42.1
  • OpenSUSE 13.1
    cpe:2.3:o:opensuse:opensuse:13.1
  • OpenSUSE 13.2
    cpe:2.3:o:opensuse:opensuse:13.2
CVSS
Base: 7.5 (as of 28-07-2016 - 15:00)
Impact:
Exploitability:
CWE CWE-119
CAPEC
  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
  • Overflow Binary Resource File
    An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the attacker access to the execution stack and execute arbitrary code in the target process. This attack pattern is a variant of standard buffer overflow attacks using an unexpected vector (binary files) to wrap its attack and open up a new attack vector. The attacker is required to either directly serve the binary content to the victim, or place it in a locale like a MP3 sharing application, for the victim to download. The attacker then is notified upon the download or otherwise locates the vulnerability opened up by the buffer overflow.
  • Buffer Overflow via Symbolic Links
    This type of attack leverages the use of symbolic links to cause buffer overflows. An attacker can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.
  • Overflow Variables and Tags
    This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The attacker crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.
  • Buffer Overflow via Parameter Expansion
    In this attack, the target software is given input that the attacker knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.
  • Buffer Overflow in an API Call
    This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An attacker who has access to an API may try to embed malicious code in the API function call and exploit a buffer overflow vulnerability in the function's implementation. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.
  • Buffer Overflow in Local Command-Line Utilities
    This attack targets command-line utilities available in a number of shells. An attacker can leverage a vulnerability found in a command-line utility to escalate privilege to root.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
nessus via4
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_51358314BEC811E582CDBCAEC524BF84.NASL
    description DrWhax reports : So in codeconv.c there is a function for Japanese character set conversion called conv_jistoeuc(). There is no bounds checking on the output buffer, which is created on the stack with alloca() Bug can be triggered by sending an email to TAILS_luser@riseup.net or whatever. Since my C is completely rusty, you might be able to make a better judgment on the severity of this issue. Marking critical for now.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 87997
    published 2016-01-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87997
    title FreeBSD : claws-mail -- no bounds checking on the output buffer in conv_jistoeuc, conv_euctojis, conv_sjistoeuc (51358314-bec8-11e5-82cd-bcaec524bf84)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-3452.NASL
    description 'DrWhax' of the Tails project reported that Claws Mail is missing range checks in some text conversion functions. A remote attacker could exploit this to run arbitrary code under the account of a user that receives a message from them using Claws Mail.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 88110
    published 2016-01-25
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=88110
    title Debian DSA-3452-1 : claws-mail - security update
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2015-AA14BE8D92.NASL
    description Update from 3.12.0 to 3.13.1 for bug-fixes. Includes security fix for CVE-2015-8614. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2016-10-18
    plugin id 89360
    published 2016-03-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=89360
    title Fedora 23 : claws-mail-3.13.1-4.fc23 (2015-aa14be8d92)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2016-214.NASL
    description This update for claws-mail fixes the following issues : - CVE-2015-8614: additional fixes for buffer overrun issues which allowed remote attackers to cause a crash or have unspecified further impact (boo#959993)
    last seen 2019-02-21
    modified 2016-10-13
    plugin id 88774
    published 2016-02-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=88774
    title openSUSE Security Update : claws-mail (openSUSE-2016-214)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-383.NASL
    description 'DrWhax' of the Tails project reported that Claws Mail is missing range checks in some text conversion functions. A remote attacker could exploit this to run arbitrary code under the account of a user that receives a message from them using Claws Mail. CVE-2015-8614 There were no checks on the output length for conversions between JIS (ISO-2022-JP) and EUC-JP, between JIS and UTF-8, and from Shift_JIS to EUC-JP. CVE-2015-8708 The original fix for CVE-2015-8614 was incomplete. For the oldoldstable distribution (squeeze), these problems have been fixed in version 3.7.6-4+squeeze2. For the oldstable distribution (wheezy) and the stable distribution (jessie), this will be fixed soon. These versions were built with hardening features that make this issue harder to exploit. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-07-09
    plugin id 87884
    published 2016-01-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87884
    title Debian DLA-383-1 : claws-mail security update
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2015-3A073171C3.NASL
    description Update from 3.12.0 to 3.13.1 for bug-fixes. Includes security fix for CVE-2015-8614. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2016-10-18
    plugin id 89215
    published 2016-03-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=89215
    title Fedora 22 : claws-mail-3.13.1-4.fc22 (2015-3a073171c3)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2016-1.NASL
    description This update for claws-mail fixes the following security issue : - CVE-2015-8614: buffer overrun issues in Japanese character set conversion code could allow an adversary to remotely crash claws and potentially have further unspecified impact (boo#959993)
    last seen 2019-02-21
    modified 2016-10-13
    plugin id 87718
    published 2016-01-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87718
    title openSUSE Security Update : claws-mail (openSUSE-2016-1)
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201606-11.NASL
    description The remote host is affected by the vulnerability described in GLSA-201606-11 (claws-mail: Multiple Vulnerabilities) Multiple vulnerabilities have been discovered in claws-mail. Please review the CVE identifiers referenced below for details. Impact : An attacker could possibly intercept communications due to the default implementation of SSL 3.0. Workaround : There is no known workaround at this time.
    last seen 2019-02-21
    modified 2016-10-10
    plugin id 91842
    published 2016-06-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91842
    title GLSA-201606-11 : claws-mail: Multiple Vulnerabilities (POODLE)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2016-219.NASL
    description This update for claws-mail fixes the following issues : - CVE-2015-8614: additional fixes for buffer overrun issues which allowed remote attackers to cause a crash or have unspecified further impact (boo#959993)
    last seen 2019-02-21
    modified 2016-10-13
    plugin id 88825
    published 2016-02-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=88825
    title openSUSE Security Update : claws-mail (openSUSE-2016-219)
refmap via4
confirm
debian DSA-3452
gentoo GLSA-201606-11
mlist
  • [oss-security] 20151221 Re: mail-client/claws-mail-3.13.1: Stack Overflow - CVE needed?
  • [oss-security] 20151221 mail-client/claws-mail-3.13.1: Stack Overflow - CVE needed?
suse openSUSE-SU-2016:0002
Last major update 02-12-2016 - 22:13
Published 11-04-2016 - 17:59
Last modified 30-10-2018 - 12:27
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