CVE-2017-8843
The join_pthread function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to...
The join_pthread function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive.
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
The join_pthread function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive.
- Record
CVE-2017-8843- 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 - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE List No score
The join_pthread function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive.
- Record
CVE-2017-8843- Updated
- 2026-11-02
EUVDEUVD-2017-17785 No score
The join_pthread function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive.
- Record
EUVD-2017-17785- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-52fx-69c2-5gh6
The join_pthread function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to...
The join_pthread function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive.
- Record
GHSA-52fx-69c2-5gh6- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSV
The join_pthread function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive.
- Record
CVE-2017-8843- 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
OSVDEBIAN-CVE-2017-8843
The join_pthread function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive.
- Record
DEBIAN-CVE-2017-8843- 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-2017-8843
The join_pthread function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive.
- Record
UBUNTU-CVE-2017-8843- 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
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
lrzipDebian:12 |
before 0.631+git180517-1 | 0.631+git180517-1 |
lrzipDebian:13 |
before 0.631+git180517-1 | 0.631+git180517-1 |
lrzipDebian:14 |
before 0.631+git180517-1 | 0.631+git180517-1 |
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 |
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 |
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 |
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-2017-8843 is a medium vulnerability (CVSS 5.5) in Long Range Zip Project Range Zip, published May 8, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.38%, the 72nd percentile. Fixed in lrzip 0.631+git180517-1.
References
github.com/ckolivas/lrzip/issues/69
blogs.gentoo.org/ago/2017/05/07/lrzip-null-pointer-dereference-in-join_pthread-stream-c
security.gentoo.org/glsa/202005-01
nvd.nist.gov/vuln/detail/CVE-2017-8843
security-tracker.debian.org/tracker/CVE-2017-8843
ubuntu.com/security/CVE-2017-8843
cve.org/CVERecord?id=CVE-2017-8843