UbuntuUSN-5194-1Olm vulnerability
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
89.3%
Releases
- Ubuntu 20.04 LTS
Packages
- olm - development files for the olm Double Ratchet implementation
Details
Denis Kasak discovered that Olm was not verifying the length of input being
processed by the olm_pk_decrypt module, which introduced a stack-based buffer
overflow vulnerability to the library. An attacker could use this to
cause a denial of service (application crash) or possibly execute arbitrary code.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Ubuntu | 20.04 | noarch | libolm3 | < 3.1.3+dfsg-2ubuntu0.1~esm1 | UNKNOWN |
| Ubuntu | 20.04 | noarch | libolm-dev | < 3.1.3+dfsg-2build2 | UNKNOWN |
| Ubuntu | 20.04 | noarch | libolm3 | < 3.1.3+dfsg-2build2 | UNKNOWN |
| Ubuntu | 20.04 | noarch | libolm3-dbgsym | < 3.1.3+dfsg-2build2 | UNKNOWN |
| Ubuntu | 20.04 | noarch | python3-olm | < 3.1.3+dfsg-2build2 | UNKNOWN |
| Ubuntu | 20.04 | noarch | python3-olm-dbgsym | < 3.1.3+dfsg-2build2 | UNKNOWN |
References
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
89.3%