ID CVE-2011-1091
Summary libymsg.c in the Yahoo! protocol plugin in libpurple in Pidgin 2.6.0 through 2.7.10 allows (1) remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a malformed YMSG notification packet, and allows (2) remote Yahoo! servers to cause a denial of service (NULL pointer dereference and application crash) via a malformed YMSG SMS message.
References
Vulnerable Configurations
  • Pidgin 2.6.0
    cpe:2.3:a:pidgin:pidgin:2.6.0
  • Pidgin 2.6.1
    cpe:2.3:a:pidgin:pidgin:2.6.1
  • Pidgin 2.6.2
    cpe:2.3:a:pidgin:pidgin:2.6.2
  • Pidgin 2.6.6
    cpe:2.3:a:pidgin:pidgin:2.6.6
  • Pidgin 2.6.5
    cpe:2.3:a:pidgin:pidgin:2.6.5
  • Pidgin 2.6.4
    cpe:2.3:a:pidgin:pidgin:2.6.4
  • Pidgin 2.7.3
    cpe:2.3:a:pidgin:pidgin:2.7.3
  • Pidgin 2.7.6
    cpe:2.3:a:pidgin:pidgin:2.7.6
  • Pidgin 2.7.7
    cpe:2.3:a:pidgin:pidgin:2.7.7
  • Pidgin 2.7.4
    cpe:2.3:a:pidgin:pidgin:2.7.4
  • Pidgin 2.7.5
    cpe:2.3:a:pidgin:pidgin:2.7.5
  • Pidgin 2.7.8
    cpe:2.3:a:pidgin:pidgin:2.7.8
  • Pidgin 2.7.1
    cpe:2.3:a:pidgin:pidgin:2.7.1
  • Pidgin 2.7.2
    cpe:2.3:a:pidgin:pidgin:2.7.2
  • Pidgin 2.7.0
    cpe:2.3:a:pidgin:pidgin:2.7.0
  • Pidgin 2.7.9
    cpe:2.3:a:pidgin:pidgin:2.7.9
  • Pidgin 2.7.10
    cpe:2.3:a:pidgin:pidgin:2.7.10
CVSS
Base: 4.0 (as of 15-03-2011 - 09:45)
Impact:
Exploitability:
Access
VectorComplexityAuthentication
NETWORK LOW SINGLE_INSTANCE
Impact
ConfidentialityIntegrityAvailability
NONE NONE PARTIAL
nessus via4
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-1273-1.NASL
    description Marius Wachtler discovered that Pidgin incorrectly handled malformed YMSG messages in the Yahoo! protocol handler. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service. This issue only affected Ubuntu 10.04 LTS and 10.10. (CVE-2011-1091) Marius Wachtler discovered that Pidgin incorrectly handled HTTP 100 responses in the MSN protocol handler. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service. (CVE-2011-3184) Diego Bauche Madero discovered that Pidgin incorrectly handled UTF-8 sequences in the SILC protocol handler. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service. (CVE-2011-3594). 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 2018-12-01
    plugin id 56915
    published 2011-11-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=56915
    title Ubuntu 10.04 LTS / 10.10 / 11.04 : pidgin vulnerabilities (USN-1273-1)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20110519_PIDGIN_ON_SL6_X.NASL
    description Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously. Multiple NULL pointer dereference flaws were found in the way the Pidgin Yahoo! Messenger Protocol plug-in handled malformed YMSG packets. A remote attacker could use these flaws to crash Pidgin via a specially crafted notification message. (CVE-2011-1091) Red Hat would like to thank the Pidgin project for reporting these issues. Upstream acknowledges Marius Wachtler as the original reporter. This update also fixes the following bugs : - Previous versions of the pidgin package did not properly clear certain data structures used in libpurple/cipher.c when attempting to free them. Partial information could potentially be extracted from the incorrectly cleared regions of the previously freed memory. With this update, data structures are properly cleared when freed. (BZ#684685) - This erratum upgrades Pidgin to upstream version 2.7.9. For a list of all changes addressed in this upgrade, refer to http://developer.pidgin.im/wiki/ChangeLog (BZ#616917) - Some incomplete translations for the kn_IN and ta_IN locales have been corrected. (BZ#633860, BZ#640170) Users of pidgin should upgrade to these updated packages, which resolve these issues. Pidgin must be restarted for this update to take effect.
    last seen 2019-02-21
    modified 2018-12-31
    plugin id 61045
    published 2012-08-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=61045
    title Scientific Linux Security Update : pidgin on SL6.x i386/x86_64
  • NASL family Slackware Local Security Checks
    NASL id SLACKWARE_SSA_2011-070-02.NASL
    description New pidgin packages are available for Slackware 12.0, 12.1, 12.2, 13.0, 13.1, and -current to fix security issues.
    last seen 2019-02-21
    modified 2018-08-09
    plugin id 52636
    published 2011-03-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=52636
    title Slackware 12.0 / 12.1 / 12.2 / 13.0 / 13.1 / current : pidgin (SSA:2011-070-02)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2011-3150.NASL
    description New release 2.7.11 Full Upstream ChangeLog : http://developer.pidgin.im/wiki/ChangeLog 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 2018-11-20
    plugin id 52725
    published 2011-03-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=52725
    title Fedora 15 : pidgin-2.7.11-1.fc15 (2011-3150)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2011-1371.NASL
    description Updated pidgin packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously. An input sanitization flaw was found in the way the Pidgin SILC (Secure Internet Live Conferencing) protocol plug-in escaped certain UTF-8 characters. A remote attacker could use this flaw to crash Pidgin via a specially crafted SILC message. (CVE-2011-3594) Multiple NULL pointer dereference flaws were found in the way the Pidgin Yahoo! Messenger Protocol plug-in handled malformed YMSG packets. A remote attacker could use these flaws to crash Pidgin via a specially crafted notification message. (CVE-2011-1091) Red Hat would like to thank the Pidgin project for reporting CVE-2011-1091. Upstream acknowledges Marius Wachtler as the original reporter of CVE-2011-1091. All Pidgin users should upgrade to these updated packages, which contain backported patches to resolve these issues. Pidgin must be restarted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-26
    plugin id 56505
    published 2011-10-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=56505
    title RHEL 4 / 5 : pidgin (RHSA-2011:1371)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2011-1371.NASL
    description Updated pidgin packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously. An input sanitization flaw was found in the way the Pidgin SILC (Secure Internet Live Conferencing) protocol plug-in escaped certain UTF-8 characters. A remote attacker could use this flaw to crash Pidgin via a specially crafted SILC message. (CVE-2011-3594) Multiple NULL pointer dereference flaws were found in the way the Pidgin Yahoo! Messenger Protocol plug-in handled malformed YMSG packets. A remote attacker could use these flaws to crash Pidgin via a specially crafted notification message. (CVE-2011-1091) Red Hat would like to thank the Pidgin project for reporting CVE-2011-1091. Upstream acknowledges Marius Wachtler as the original reporter of CVE-2011-1091. All Pidgin users should upgrade to these updated packages, which contain backported patches to resolve these issues. Pidgin must be restarted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 56514
    published 2011-10-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=56514
    title CentOS 4 / 5 : pidgin (CESA-2011:1371)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_3_FINCH-111219.NASL
    description Remote users could crash pidgin via ICQ, SILC, XMPP and Yahoo protocols (CVE-2011-4601, CVE-2011-4603, CVE-2011-4602, CVE-2011-1091).
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 75490
    published 2014-06-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=75490
    title openSUSE Security Update : finch (openSUSE-SU-2012:0066-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_FINCH-111226.NASL
    description Remote users could have crashed pidgin via ICQ, SILC, XMPP and Yahoo protocols (CVE-2011-4601 / CVE-2011-4603 / CVE-2011-4602 / CVE-2011-1091). This has been fixed.
    last seen 2019-02-21
    modified 2013-10-25
    plugin id 57465
    published 2012-01-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=57465
    title SuSE 11.1 Security Update : pidgin (SAT Patch Number 5586)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2011-0616.NASL
    description Updated pidgin packages that fix multiple security issues and various bugs are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously. Multiple NULL pointer dereference flaws were found in the way the Pidgin Yahoo! Messenger Protocol plug-in handled malformed YMSG packets. A remote attacker could use these flaws to crash Pidgin via a specially crafted notification message. (CVE-2011-1091) Red Hat would like to thank the Pidgin project for reporting these issues. Upstream acknowledges Marius Wachtler as the original reporter. This update also fixes the following bugs : * Previous versions of the pidgin package did not properly clear certain data structures used in libpurple/cipher.c when attempting to free them. Partial information could potentially be extracted from the incorrectly cleared regions of the previously freed memory. With this update, data structures are properly cleared when freed. (BZ#684685) * This erratum upgrades Pidgin to upstream version 2.7.9. For a list of all changes addressed in this upgrade, refer to http://developer.pidgin.im/wiki/ChangeLog (BZ#616917) * Some incomplete translations for the kn_IN and ta_IN locales have been corrected. (BZ#633860, BZ#640170) Users of pidgin should upgrade to these updated packages, which resolve these issues. Pidgin must be restarted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-26
    plugin id 54598
    published 2011-05-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=54598
    title RHEL 6 : pidgin (RHSA-2011:0616)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2011-3132.NASL
    description New release 2.7.11 Full Upstream ChangeLog : http://developer.pidgin.im/wiki/ChangeLog 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 2018-11-20
    plugin id 52724
    published 2011-03-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=52724
    title Fedora 13 : pidgin-2.7.11-1.fc13 (2011-3132)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2011-1371.NASL
    description From Red Hat Security Advisory 2011:1371 : Updated pidgin packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously. An input sanitization flaw was found in the way the Pidgin SILC (Secure Internet Live Conferencing) protocol plug-in escaped certain UTF-8 characters. A remote attacker could use this flaw to crash Pidgin via a specially crafted SILC message. (CVE-2011-3594) Multiple NULL pointer dereference flaws were found in the way the Pidgin Yahoo! Messenger Protocol plug-in handled malformed YMSG packets. A remote attacker could use these flaws to crash Pidgin via a specially crafted notification message. (CVE-2011-1091) Red Hat would like to thank the Pidgin project for reporting CVE-2011-1091. Upstream acknowledges Marius Wachtler as the original reporter of CVE-2011-1091. All Pidgin users should upgrade to these updated packages, which contain backported patches to resolve these issues. Pidgin must be restarted for this update to take effect.
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 68369
    published 2013-07-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=68369
    title Oracle Linux 4 : pidgin (ELSA-2011-1371)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_4_FINCH-111219.NASL
    description Remote users could crash pidgin via ICQ, SILC, XMPP and Yahoo protocols (CVE-2011-4601, CVE-2011-4603, CVE-2011-4602, CVE-2011-1091).
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 75830
    published 2014-06-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=75830
    title openSUSE Security Update : finch (openSUSE-SU-2012:0066-1)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20111013_PIDGIN_ON_SL4_X.NASL
    description Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously. An input sanitization flaw was found in the way the Pidgin SILC (Secure Internet Live Conferencing) protocol plug-in escaped certain UTF-8 characters. A remote attacker could use this flaw to crash Pidgin via a specially crafted SILC message. (CVE-2011-3594) Multiple NULL pointer dereference flaws were found in the way the Pidgin Yahoo! Messenger Protocol plug-in handled malformed YMSG packets. A remote attacker could use these flaws to crash Pidgin via a specially crafted notification message. (CVE-2011-1091) All Pidgin users should upgrade to these updated packages, which contain backported patches to resolve these issues. Pidgin must be restarted for this update to take effect.
    last seen 2019-02-21
    modified 2018-12-31
    plugin id 61153
    published 2012-08-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=61153
    title Scientific Linux Security Update : pidgin on SL4.x, SL5.x i386/x86_64
  • NASL family Mandriva Local Security Checks
    NASL id MANDRIVA_MDVSA-2011-050.NASL
    description Multiple vulnerabilities has been identified and fixed in pidgin : It was discovered that libpurple versions prior to 2.7.10 do not properly clear certain data structures used in libpurple/cipher.c prior to freeing. An attacker could potentially extract partial information from memory regions freed by libpurple. The Yahoo protocol plugin in libpurple versions 2.6.0 through 2.7.10 do not properly handle malformed YMSG packets, leading to NULL pointer dereferences and application crash (CVE-2011-1091). Packages for 2009.0 are provided as of the Extended Maintenance Program. Please visit this link to learn more: http://store.mandriva.com/product_info.php?cPath=149 products_id=490 This update provides pidgin 2.7.11, which is not vulnerable to these issues.
    last seen 2019-02-21
    modified 2018-07-19
    plugin id 52748
    published 2011-03-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=52748
    title Mandriva Linux Security Advisory : pidgin (MDVSA-2011:050)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2011-3113.NASL
    description New release 2.7.11 Full Upstream ChangeLog : http://developer.pidgin.im/wiki/ChangeLog 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 2018-11-20
    plugin id 52665
    published 2011-03-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=52665
    title Fedora 14 : pidgin-2.7.11-1.fc14 (2011-3113)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_FINCH-7901.NASL
    description Remote users could have crashed crash pidgin via ICQ, SILC, XMPP and Yahoo protocols (CVE-2011-4601 / CVE-2011-4603 / CVE-2011-4602 / CVE-2011-1091). This has been fixed.
    last seen 2019-02-21
    modified 2012-05-17
    plugin id 57466
    published 2012-01-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=57466
    title SuSE 10 Security Update : pidgin (ZYPP Patch Number 7901)
oval via4
accepted 2013-09-30T04:01:10.904-04:00
class vulnerability
contributors
name Shane Shaffer
organization G2, Inc.
definition_extensions
comment Pidgin is installed
oval oval:org.mitre.oval:def:12366
description libymsg.c in the Yahoo! protocol plugin in libpurple in Pidgin 2.6.0 through 2.7.10 allows (1) remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a malformed YMSG notification packet, and allows (2) remote Yahoo! servers to cause a denial of service (NULL pointer dereference and application crash) via a malformed YMSG SMS message.
family windows
id oval:org.mitre.oval:def:18402
status accepted
submitted 2013-08-16T15:36:10.221-04:00
title libymsg.c in the Yahoo! protocol plugin in libpurple in Pidgin 2.6.0 through 2.7.10 allows (1) remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a malformed YMSG notification packet, and allows (2) remote Yahoo! servers to cause a denial of service (NULL pointer dereference and application crash) via a malformed YMSG SMS message
version 4
redhat via4
advisories
  • rhsa
    id RHSA-2011:0616
  • rhsa
    id RHSA-2011:1371
rpms
  • finch-0:2.7.9-3.el6
  • finch-devel-0:2.7.9-3.el6
  • libpurple-0:2.7.9-3.el6
  • libpurple-devel-0:2.7.9-3.el6
  • libpurple-perl-0:2.7.9-3.el6
  • libpurple-tcl-0:2.7.9-3.el6
  • pidgin-0:2.7.9-3.el6
  • pidgin-devel-0:2.7.9-3.el6
  • pidgin-docs-0:2.7.9-3.el6
  • pidgin-perl-0:2.7.9-3.el6
  • finch-0:2.6.6-7.el4
  • finch-devel-0:2.6.6-7.el4
  • libpurple-0:2.6.6-7.el4
  • libpurple-devel-0:2.6.6-7.el4
  • libpurple-perl-0:2.6.6-7.el4
  • libpurple-tcl-0:2.6.6-7.el4
  • pidgin-0:2.6.6-7.el4
  • pidgin-devel-0:2.6.6-7.el4
  • pidgin-perl-0:2.6.6-7.el4
  • finch-0:2.6.6-5.el5_7.1
  • finch-devel-0:2.6.6-5.el5_7.1
  • libpurple-0:2.6.6-5.el5_7.1
  • libpurple-devel-0:2.6.6-5.el5_7.1
  • libpurple-perl-0:2.6.6-5.el5_7.1
  • libpurple-tcl-0:2.6.6-5.el5_7.1
  • pidgin-0:2.6.6-5.el5_7.1
  • pidgin-devel-0:2.6.6-5.el5_7.1
  • pidgin-perl-0:2.6.6-5.el5_7.1
refmap via4
bid 46837
confirm
fedora
  • FEDORA-2011-3113
  • FEDORA-2011-3150
secunia
  • 43695
  • 43721
  • 46376
slackware SSA:2011-070-02
suse openSUSE-SU-2012:0066
vupen
  • ADV-2011-0643
  • ADV-2011-0661
  • ADV-2011-0669
  • ADV-2011-0703
xf pidgin-yahoo-protocol-dos(66055)
Last major update 02-11-2013 - 23:11
Published 14-03-2011 - 15:55
Last modified 18-09-2017 - 21:32
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