ID CVE-2008-3533
Summary Format string vulnerability in the window_error function in yelp-window.c in yelp in Gnome after 2.19.90 and before 2.24 allows remote attackers to execute arbitrary code via format string specifiers in an invalid URI on the command line, as demonstrated by use of yelp within (1) man or (2) ghelp URI handlers in Firefox, Evolution, and unspecified other programs.
References
Vulnerable Configurations
  • cpe:2.3:a:gnome:yelp
    cpe:2.3:a:gnome:yelp
  • cpe:2.3:a:gnome:gnome:2.20
    cpe:2.3:a:gnome:gnome:2.20
  • cpe:2.3:a:gnome:gnome:2.22
    cpe:2.3:a:gnome:gnome:2.22
CVSS
Base: 10.0 (as of 19-08-2008 - 10:52)
Impact:
Exploitability:
CWE CWE-134
CAPEC
  • Format String Injection
    An attacker includes formatting characters in a string input field on the target application. Most applications assume that users will provide static text and may respond unpredictably to the presence of formatting character. For example, in certain functions of the C programming languages such as printf, the formatting character %s will print the contents of a memory location expecting this location to identify a string and the formatting character %n prints the number of DWORD written in the memory. An attacker can use this to read or write to memory locations or files, or simply to manipulate the value of the resulting text in unexpected ways. Reading or writing memory may result in program crashes and writing memory could result in the execution of arbitrary code if the attacker can write to the program stack.
  • String Format Overflow in syslog()
    This attack targets the format string vulnerabilities in the syslog() function. An attacker would typically inject malicious input in the format string parameter of the syslog function. This is a common problem, and many public vulnerabilities and associated exploits have been posted.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE COMPLETE COMPLETE
exploit-db via4
description Yelp 2.23.1 Invalid URI Format String Vulnerability. CVE-2008-3533. Dos exploit for linux platform
id EDB-ID:32248
last seen 2016-02-03
modified 2008-08-13
published 2008-08-13
reporter Aaron Grattafiori
source https://www.exploit-db.com/download/32248/
title Yelp 2.23.1 Invalid URI Format String Vulnerability
nessus via4
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-638-1.NASL
    description Aaron Grattafiori discovered that the Gnome Help Viewer did not handle format strings correctly when displaying certain error messages. If a user were tricked into opening a specially crafted URI, a remote attacker could execute arbitrary code with user privileges. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu 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 2018-11-28
    plugin id 34059
    published 2008-08-28
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=34059
    title Ubuntu 7.10 / 8.04 LTS : yelp vulnerability (USN-638-1)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2008-7293.NASL
    description This update fixes a format string vulnerability that was discovered in yelp 2.20. 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 2015-10-21
    plugin id 34126
    published 2008-09-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=34126
    title Fedora 8 : yelp-2.20.0-12.fc8 (2008-7293)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_0_YELP-081024.NASL
    description This update of yelp fixes a format string bug. (CVE-2008-3533)
    last seen 2018-09-01
    modified 2014-06-13
    plugin id 40162
    published 2009-07-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=40162
    title openSUSE Security Update : yelp (yelp-271)
  • NASL family Mandriva Local Security Checks
    NASL id MANDRIVA_MDVSA-2008-175.NASL
    description A format string vulnerability was discovered in yelp after version 2.19.90 and before 2.24 that could allow remote attackers to execute arbitrary code via format string specifiers in an invalid URI on the command-line or via URI helpers in Firefox, Evolution, or possibly other programs (CVE-2008-3533). The updated packages have been patched to correct this issue.
    last seen 2019-02-21
    modified 2018-07-19
    plugin id 37661
    published 2009-04-23
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=37661
    title Mandriva Linux Security Advisory : yelp (MDVSA-2008:175)
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-200809-01.NASL
    description The remote host is affected by the vulnerability described in GLSA-200809-01 (yelp: User-assisted execution of arbitrary code) Aaron Grattafiori reported a format string vulnerability in the window_error() function in yelp-window.c. Impact : A remote attacker can entice a user to open specially crafted 'man:' or 'ghelp:' URIs in yelp, or an application using yelp such as Firefox or Evolution, and execute arbitrary code with the privileges of that user. Workaround : There is no known workaround at this time.
    last seen 2019-02-21
    modified 2018-08-10
    plugin id 34090
    published 2008-09-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=34090
    title GLSA-200809-01 : yelp: User-assisted execution of arbitrary code
refmap via4
bid 30690
confirm
fedora FEDORA-2008-7293
mandriva MDVSA-2008:175
secunia
  • 31465
  • 31620
  • 31834
  • 32629
suse SUSE-SR:2008:024
ubuntu USN-638-1
vupen ADV-2008-2393
xf yelp-uri-format-string(44449)
statements via4
contributor Joshua Bressers
lastmodified 2008-08-19
organization Red Hat
statement This issue does not affect the versions of the yelp package, as shipped with Red Hat Enterprise Linux 3, 4 and 5.
Last major update 07-03-2011 - 22:10
Published 18-08-2008 - 13:41
Last modified 07-08-2017 - 21:31
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