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CVE-2015-8833
CRITICAL
Use-after-free vulnerability in the create_smp_dialog function in gtk-dialog.c in the Off-the-Record Messaging (OTR) pidgin-otr plugin before 4.0.2 for Pidgin allows remote attackers to execute arbitrary code via vectors related to the "Authenticate buddy" menu item.
Published: Apr 12, 2016
Modified: Jun 17, 2026
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (1)
| Vendor | Product | Version |
|---|---|---|
| cypherpunks | pidgin-otr | * |
GitHub Security Advisory GHSA-r9f9-6pf9-r2c4
Use-after-free vulnerability in the create_smp_dialog function in gtk-dialog.c in the Off-the...
References (24)
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00095.html
- http://lists.opensuse.org/opensuse-updates/2016-03/msg00109.html
- http://www.debian.org/security/2016/dsa-3528
- http://www.openwall.com/lists/oss-security/2016/03/09/13
- http://www.openwall.com/lists/oss-security/2016/03/09/8
- http://www.securityfocus.com/bid/84295
- https://blog.fuzzing-project.org/39-Heap-use-after-free-in-Pidgin-OTR-plugin-CVE-2015-8833.html
- https://bugs.otr.im/issues/128
- https://bugs.otr.im/issues/88
- https://bugs.otr.im/projects/pidgin-otr/repository/revisions/aaf551b9dd5cbba8c4abaa3d4dc7ead860efef94
- https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002582.html
- https://security.gentoo.org/glsa/201701-10
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00095.html
- http://lists.opensuse.org/opensuse-updates/2016-03/msg00109.html
- http://www.debian.org/security/2016/dsa-3528
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
7.03%
Top 6% most likely to be exploited
Threat Score
41.3 / 100
Data Sources
NVD
EPSS
GitHub