Bug 2520812 (CVE-2026-77642) - CVE-2026-77642 tor: Tor: Denial of Service via out-of-bounds write in signature parsing
Summary: CVE-2026-77642 tor: Tor: Denial of Service via out-of-bounds write in signatu...
Keywords:
Status: NEW
Alias: CVE-2026-77642
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2521290 2521291
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-20 21:48 UTC by OSIDB Bzimport
Modified: 2026-08-22 11:48 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-08-20 21:48:56 UTC 
tor before 0.4.9.9 was prone to an out-of-bounds write when parsing a consensus or  detached signature with unexpected signature digest type. Impact  is minor for most Tor roles, but potentially major for directory   authorities. This is TROVE-2026-019.
Note You need to log in before you can comment on or make changes to this bug.