CVE-2015-8833

critical

Published 2016-04-12 · Modified 2026-05-06

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CVSS v3

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.8

Description

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.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Fixed 4 releases

Version	Status	Fixed in
trixie	Fixed	`4.0.2-1`
sid	Fixed	`4.0.2-1`
bullseye	Fixed	`4.0.2-1`
bookworm	Fixed	`4.0.2-1`

Application impact

Vendor	Product	Versions	Fixed
cypherpunks	pidgin-otr	`{"endIncluding":"4.0.1"}`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.