Vulnerability Monitor

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CVE-2020-12135

bson before 0.8 incorrectly uses int rather than size_t for many variables, parameters, and return values. In particular, the bson_ensure_space() parameter bytesNeeded could have an integer overflow via properly constructed bson input.

Published

2020-04-24T01:15:11.430

Last Modified

2024-11-21T04:59:19.263

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-190

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	whoopsie_project	whoopsie	≤ 0.2.69	Yes
Application	mongodb	c_driver	< 0.8	Yes

References

https://bugs.launchpad.net/ubuntu/+source/whoopsie/+bug/1872560 Exploit, Third Party Advisory ([email protected])
https://github.com/10gen-archive/mongo-c-driver-legacy/commit/1a1f5e26a4309480d88598913f9eebf9e9cba8ca#diff-f7d29a680148f52d6601f59ed787f577 Patch, Third Party Advisory ([email protected])
https://launchpadlibrarian.net/474887364/bson-fix-overflow.patch Patch, Third Party Advisory ([email protected])
https://usn.ubuntu.com/4450-1/ ([email protected])
https://bugs.launchpad.net/ubuntu/+source/whoopsie/+bug/1872560 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/10gen-archive/mongo-c-driver-legacy/commit/1a1f5e26a4309480d88598913f9eebf9e9cba8ca#diff-f7d29a680148f52d6601f59ed787f577 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://launchpadlibrarian.net/474887364/bson-fix-overflow.patch Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4450-1/ (af854a3a-2127-422b-91ae-364da2661108)