CVE-2018-11496
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c,...
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in lrzip.c lacks certain size validation.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- 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
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in lrzip.c lacks certain size validation.
- Record
CVE-2018-11496- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-416
- Updated
- 2026-11-02
CVE List No score
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in lrzip.c lacks certain size validation.
- Record
CVE-2018-11496- Updated
- 2026-11-02
EUVDEUVD-2018-3525 No score
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in lrzip.c lacks certain size validation.
- Record
EUVD-2018-3525- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-j3rv-w4w8-qcv2
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c,...
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in lrzip.c lacks certain size validation.
- Record
GHSA-j3rv-w4w8-qcv2- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
OSV
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in lrzip.c lacks certain size validation.
- Record
CVE-2018-11496- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-11496
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in lrzip.c lacks certain size validation.
- Record
DEBIAN-CVE-2018-11496- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-11496
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in lrzip.c lacks certain size validation.
- Record
UBUNTU-CVE-2018-11496- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUSN-5171-1 No score
lrzip vulnerabilities
It was discovered that Long Range ZIP incorrectly handled certain specially crafted lrz files. A remote attacker could possibly use this issue to cause a denial of service (crash) or other unspecified impact.
- Record
USN-5171-1- Updated
- 2026-11-02
OSVUSN-5171-2 No score
lrzip vulnerabilities
USN-5171-1 fixed vulnerabilities in Long Range ZIP. This update provides the corresponding updates for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory details:
It was discovered that Long Range ZIP incorrectly handled certain specially crafted lrz files. A remote attacker could possibly use this issue to cause a denial of service (crash) or other unspecified impact.
- Record
USN-5171-2- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
lrzipDebian:12 |
before 0.631+git180528-1 | 0.631+git180528-1 |
lrzipDebian:13 |
before 0.631+git180528-1 | 0.631+git180528-1 |
lrzipDebian:14 |
before 0.631+git180528-1 | 0.631+git180528-1 |
lrzipDebian:9 From an advisory covering 13 CVEs |
before 0.631-1+deb9u1, plus listed versions 0.631-1 |
0.631-1+deb9u1 |
lrzipUbuntu:Pro:14.04:LTS |
before 0.616-1ubuntu0.1~esm1, plus listed versions 0.608-20.616-10.616-1ubuntu0.1~esm |
0.616-1ubuntu0.1~esm1 |
lrzipUbuntu:Pro:16.04:LTS |
before 0.621-1ubuntu0.1~esm1, plus listed versions 0.621-1 |
0.621-1ubuntu0.1~esm1 |
lrzipUbuntu:18.04:LTS |
before 0.631-1+deb9u1build0.18.04.1, plus listed versions 0.631-1 |
0.631-1+deb9u1build0.18.04.1 |
lrzipUbuntu:18.04:LTS From an advisory covering 10 CVEs |
before 0.631-1+deb9u1build0.18.04.1, plus listed versions 0.631-1 |
0.631-1+deb9u1build0.18.04.1 |
lrzipUbuntu:Pro:14.04:LTS From an advisory covering 10 CVEs |
before 0.616-1ubuntu0.1~esm1, plus listed versions 0.608-20.616-10.616-1ubuntu0.1~esm |
0.616-1ubuntu0.1~esm1 |
lrzipUbuntu:Pro:16.04:LTS From an advisory covering 10 CVEs |
before 0.621-1ubuntu0.1~esm1, plus listed versions 0.621-1 |
0.621-1ubuntu0.1~esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, 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-2018-11496 is a medium vulnerability (CVSS 6.5) in Long Range Zip Project Range Zip, published May 26, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.24%, the 69th percentile. Fixed in lrzip 0.631+git180528-1.
References
github.com/ckolivas/lrzip/issues/96
lists.debian.org/debian-lts-announce/2021/08/msg00001.html
nvd.nist.gov/vuln/detail/CVE-2018-11496
security-tracker.debian.org/tracker/CVE-2018-11496
ubuntu.com/security/CVE-2018-11496
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cve.org/CVERecord?id=CVE-2018-11496