A vulnerability was found in 9fans plan9port up to 9da5b44. It has been classified as critical. This affects the function edump in the library /src/plan9port/src/libsec/port/x509.c. The manipulation leads to heap-based buffer overflow. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The identifier of the patch is b3e06559475b0130a7a2fb56ac4d131d13d2012f. It is recommended to apply a patch to fix this issue.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://vuldb.com/?id.259053 | technical description vdb entry |
| https://vuldb.com/?ctiid.259053 | signature permissions required |
| https://vuldb.com/?submit.304567 | third party advisory |
| https://vuldb.com/?submit.607684 | third party advisory |
| https://drive.google.com/drive/folders/1kedwNLNDiFQB2OAp7S-ZKYoF7nxfIZGO?usp=sharing | related |
| https://github.com/9fans/plan9port/issues/710#issuecomment-2819906648 | issue tracking |
| https://github.com/user-attachments/files/19698345/plan9port_crash_1.txt | exploit |
| https://git.9front.org/plan9front/plan9front/b3e06559475b0130a7a2fb56ac4d131d13d2012f/commit.html | patch |