CVE-2011-2943
The irc_msg_who function in msgs.c in the IRC protocol plugin in libpurple 2.8.0 through 2.9.0 in Pidgin before 2.10.0 does not properly validate characters in nicknames, which allows user-assisted
02 Description
The irc_msg_who function in msgs.c in the IRC protocol plugin in libpurple 2.8.0 through 2.9.0 in Pidgin before 2.10.0 does not properly validate characters in nicknames, which allows user-assisted
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.59% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 88.9% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2011-08-29 17:00Z15 YR AGO
- Last updated
- 2024-08-06 23:15Z2 YR AGO
- Reserved
- 2011-07-27
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 0b89efb72393f48a2ba0a7e3815defee7af59195662a672e3c777270d7695a97
05 Affected products
06 References
- pidgin.imhttp://pidgin.im/news/security/?id=53
- developer.pidgin.imhttp://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43
- www.openwall.com[oss-security] 20110822 Re: CVE request: Pidgin crashhttp://www.openwall.com/lists/oss-security/2011/08/22/2
- secunia.com45663http://secunia.com/advisories/45663
- oval.cisecurity.orgoval:org.mitre.oval:def:18005https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18005
- exchange.xforce.ibmcloud.compidgin-irc-protocol-dos(69340)https://exchange.xforce.ibmcloud.com/vulnerabilities/69340
- secunia.com45916http://secunia.com/advisories/45916
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=722939
- www.securityfocus.com49268http://www.securityfocus.com/bid/49268
- developer.pidgin.imhttp://developer.pidgin.im/viewmtn/revision/diff/5749f9193063800d27bef75c2388f6f9cc2f7f37/with/5c2dba4a7e2e76b76e7f472b88953a4316706d43/libpurple/protocols/irc/msgs.c
- securitytracker.com1025961http://securitytracker.com/id?1025961
- www.openwall.com[oss-security] 20110820 CVE request: Pidgin crashhttp://www.openwall.com/lists/oss-security/2011/08/20/2
07 Fixed in
Debian 12
- pidgin Fixed in 2.10.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- pidgin Fixed in 2.10.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- pidgin Fixed in 2.10.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.