CVE-2018-10887
libgit2 - security update
8.1
HIGH
CVSS 3.1
EPSS 0.39%
Description
A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may lead to an integer overflow which in turn leads to an out of bound read, allowing to read before the base object. An attacker may use this flaw to leak memory addresses or cause a Denial of Service.
How to fix CVE-2018-10887
To remediate CVE-2018-10887, upgrade the affected package to a fixed version below.
- —upgrade to 0.27.3-r0 or later
- —upgrade to 0.27.4+dfsg.1-0.1 or later
- —upgrade to 0.21.1-3+deb8u1 or later
- —upgrade to 0.25.1+really0.24.6-1+deb9u1 or later
Is CVE-2018-10887 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 0.27.3-r0
- from 0, < 0.27.4+dfsg.1-0.1
- from 0, < 0.21.1-3+deb8u1
- from 0, < 0.25.1+really0.24.6-1+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H |