CVE-2023-39741
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int)...
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.
- Record
CVE-2023-39741- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.
- Record
CVE-2023-39741- Updated
- 2026-11-02
EUVDEUVD-2023-43441 No score
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.
- Record
EUVD-2023-43441- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rvm8-5gx5-v3wg
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int)...
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.
- Record
GHSA-rvm8-5gx5-v3wg- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVALPINE-CVE-2023-39741
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.
- Record
ALPINE-CVE-2023-39741- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
OSVDEBIAN-CVE-2023-39741
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.
- Record
DEBIAN-CVE-2023-39741- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2023-39741
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.
- Record
UBUNTU-CVE-2023-39741- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV No score
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.
- Record
CVE-2023-39741- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
lrzipAlpine:v3.23 |
before 0.660-r0 | 0.660-r0 |
lrzipAlpine:v3.24 |
before 0.660-r0 | 0.660-r0 |
lrzipDebian:12 |
All versions, plus listed versions 0.651-20.651-30.660-1 |
None known |
lrzipDebian:13 |
before 0.651-3 | 0.651-3 |
lrzipDebian:14 |
before 0.651-3 | 0.651-3 |
lrzipUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 0.608-20.616-10.616-1ubuntu0.1~esm0.616-1ubuntu0.1~esm10.616-1ubuntu0.1~esm2 |
None known |
lrzipUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 0.621-10.621-1ubuntu0.1~esm10.621-1ubuntu0.1~esm2 |
None known |
lrzipUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 0.631-10.631-1ubuntu0.1~esm10.631-1+deb9u1build0.18.04.10.631-1+deb9u3build0.18.04.1 |
None known |
lrzipUbuntu:20.04:LTS |
All versions, plus listed versions 0.631+git180528-10.631+git180528-1build10.631+git180528-1+deb10u1build0.20.04.1 |
None known |
lrzipUbuntu:22.04:LTS |
All versions, plus listed versions 0.641-10.651-20.651-2ubuntu0.22.04.1 |
None known |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
lrzipUbuntu:24.04:LTS |
All versions, plus listed versions 0.651-2ubuntu1 |
None known |
lrzipUbuntu:25.10 |
All versions, plus listed versions 0.651-2ubuntu10.651-3 |
None known |
lrzipUbuntu:26.10 |
All versions, plus listed versions 0.660-1 |
None known |
lrzipUbuntu:26.04:LTS |
All versions, plus listed versions 0.651-30.651-3build10.660-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| 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-2023-39741 is a medium vulnerability (CVSS 5.5) in Long Range Zip Project Range Zip, published August 17, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. Fixed in lrzip 0.660-r0.