Debian Security Bug TrackerDEBIANCVE:CVE-2019-14876CVE-2019-14876
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
44.7%
In the __lshift function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate a big integer, however no check is performed to verify if the allocation succeeded or not. The access to b1 will trigger a null pointer dereference bug in case of a memory allocation failure.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | newlib | < 3.3.0-1 | newlib_3.3.0-1_all.deb |
| Debian | 11 | all | newlib | < 3.3.0-1 | newlib_3.3.0-1_all.deb |
| Debian | 999 | all | newlib | < 3.3.0-1 | newlib_3.3.0-1_all.deb |
| Debian | 13 | all | newlib | < 3.3.0-1 | newlib_3.3.0-1_all.deb |
| Debian | 12 | all | picolibc | <= 1.8-1 | picolibc_1.8-1_all.deb |
| Debian | 11 | all | picolibc | <= 1.5.1-2 | picolibc_1.5.1-2_all.deb |
| Debian | 999 | all | picolibc | <= 1.8.6-2 | picolibc_1.8.6-2_all.deb |
| Debian | 13 | all | picolibc | <= 1.8.6-2 | picolibc_1.8.6-2_all.deb |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
44.7%