CVE-2022-31116
Publication date 5 July 2022
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Affected versions were found to improperly decode certain characters. JSON strings that contain escaped surrogate characters not part of a proper surrogate pair were decoded incorrectly. Besides corrupting strings, this allowed for potential key confusion and value overwriting in dictionaries. All users parsing JSON from untrusted sources are vulnerable. From version 5.4.0, UltraJSON decodes lone surrogates in the same way as the standard library's `json` module does, preserving them in the parsed output. Users are advised to upgrade. There are no known workarounds for this issue.
Status
Package | Ubuntu Release | Status |
---|---|---|
collada2gltf | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Needs evaluation
|
|
20.04 LTS focal | Not in release | |
18.04 LTS bionic |
Needs evaluation
|
|
16.04 LTS xenial |
Needs evaluation
|
|
14.04 LTS trusty | Not in release | |
pandas | 24.04 LTS noble |
Needs evaluation
|
22.04 LTS jammy |
Needs evaluation
|
|
20.04 LTS focal |
Needs evaluation
|
|
18.04 LTS bionic |
Needs evaluation
|
|
16.04 LTS xenial |
Needs evaluation
|
|
14.04 LTS trusty |
Needs evaluation
|
|
ujson | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Fixed 5.1.0-1ubuntu0.1~esm1
|
|
20.04 LTS focal |
Fixed 1.35-4ubuntu0.1+esm1
|
|
18.04 LTS bionic |
Fixed 1.35-2ubuntu0.1~esm1
|
|
16.04 LTS xenial |
Fixed 1.33-1ubuntu0.1~esm2
|
|
14.04 LTS trusty | Not in release |
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ccdm94
the embedded ujson code in pandas, eventhough containing similar content as the upstream ujson code, seems to have diverged from the ujson upstream project (they have fully forked ujson), since pandas upstream is maintaining their own ujson bug fixes and changes without re-syncing with the ujson upstream project. There is no indication the ujson fork, as used in pandas, is vulnerable to the same issues as the upstream ujson code. according to https://github.com/ultrajson/ultrajson/releases/tag/5.4.0, the commits that fix this issue are e0e5db9a46 and bc7bdff051. However, release 5.4.0 does include a few other commits which seem to be related to the above.
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 · High |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-6629-1
- UltraJSON vulnerabilities
- 14 February 2024
- USN-6629-3
- UltraJSON vulnerabilities
- 14 February 2024
Other references
- https://github.com/ultrajson/ultrajson/security/advisories/GHSA-wpqr-jcpx-745r
- https://github.com/ultrajson/ultrajson/commit/67ec07183342589d602e0fcf7bb1ff3e19272687 (5.4.0)
- https://github.com/ultrajson/ultrajson/commit/67ec07183342589d602e0fcf7bb1ff3e19272687
- https://www.cve.org/CVERecord?id=CVE-2022-31116