CVE-2020-7105
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference...
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked.
- Record
CVE-2020-7105- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE ListNo score
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked.
- Record
CVE-2020-7105- Updated
- 2026-11-02
EUVDEUVD-2020-28239No score
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked.
- Record
EUVD-2020-28239- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-cjp9-9h2g-g3x5
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference...
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked.
- Record
GHSA-cjp9-9h2g-g3x5- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVBELL-CVE-2020-7105
CVE-2020-7105 does not affect BellSoft software
- Record
BELL-CVE-2020-7105- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked.
- Record
CVE-2020-7105- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
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OSVDEBIAN-CVE-2020-7105
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked.
- Record
DEBIAN-CVE-2020-7105- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-7105
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked.
- Record
UBUNTU-CVE-2020-7105- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-13
OSVMGASA-2020-0109No score
Updated hiredis packages fix security vulnerability
Updated hiredis packages fix security vulnerability:
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked (CVE-2020-7105).
- Record
MGASA-2020-0109- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10844-1No score
hiredis-1.0.0-2.6 on GA media
These are all security issues fixed in the hiredis-1.0.0-2.6 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10844-1- Updated
- 2026-11-02
OSVUSN-9070-1No score
hiredis vulnerability
It was discovered that Hiredis did not check the return values of memory allocation functions in some places, leading to a NULL pointer dereference. An attacker could possibly use this issue to cause applications using Hiredis to crash, resulting in a denial of service.
- Record
USN-9070-1- Updated
- 2026-11-13
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
hiredisDebian:12 | before 0.14.0-5 | 0.14.0-5 |
hiredisDebian:13 | before 0.14.0-5 | 0.14.0-5 |
hiredisDebian:14 | before 0.14.0-5 | 0.14.0-5 |
hiredisDebian:8 | before 0.11.0-4+deb8u1, plus listed versions 0.11.0-4 | 0.11.0-4+deb8u1 |
hiredisMageia:7 | before 0.13.3-4.1.mga7 | 0.13.3-4.1.mga7 |
hiredisUbuntu:Pro:16.04:LTS | before 0.13.3-2ubuntu0.1~esm1, plus listed versions 0.13.1-20.13.3-10.13.3-2 | 0.13.3-2ubuntu0.1~esm1 |
hiredisUbuntu:Pro:18.04:LTS | before 0.13.3-2.2ubuntu0.1~esm1, plus listed versions 0.13.3-20.13.3-2.10.13.3-2.2 | 0.13.3-2.2ubuntu0.1~esm1 |
hiredisopenSUSE:Tumbleweed | before 1.0.0-2.6 | 1.0.0-2.6 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases | OSV | |
| affected, references | OSV | |
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-7105 is a high vulnerability (CVSS 7.5) in Redislabs Hiredis, published January 16, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.76%, the 86th percentile. Fixed in hiredis 0.14.0-5.
References
github.com/redis/hiredis/issues/747
lists.debian.org/debian-lts-announce/2020/01/msg00028.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/76ZDGWBV3YEEQ2YC65ZJEQLKQFVFBZHX
nvd.nist.gov/vuln/detail/CVE-2020-7105
Show 11 moreShow less
docs.bell-sw.com/security/cves/CVE-2020-7105
security-tracker.debian.org/tracker/CVE-2020-7105
advisories.mageia.org/MGASA-2020-0109.html
bugs.mageia.org/show_bug.cgi?id=26255
ubuntu.com/security/CVE-2020-7105
cve.org/CVERecord?id=CVE-2020-7105
suse.com/security/cve/CVE-2020-7105