CVE-2017-7443
apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded...
apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded newline characters, related to lack of blocking for the %0[ad] regular expression.
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
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded newline characters, related to lack of blocking for the %0[ad] regular expression.
- Record
CVE-2017-7443- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-113
- Updated
- 2026-11-02
CVE List No score
apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded newline characters, related to lack of blocking for the %0[ad] regular expression.
- Record
CVE-2017-7443- Updated
- 2026-11-02
EUVDEUVD-2017-16467 No score
apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded newline characters, related to lack of blocking for the %0[ad] regular expression.
- Record
EUVD-2017-16467- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w6gh-25j9-8fm4
apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded...
apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded newline characters, related to lack of blocking for the %0[ad] regular expression.
- Record
GHSA-w6gh-25j9-8fm4- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-113
- Updated
- 2026-11-02
OSV
apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded newline characters, related to lack of blocking for the %0[ad] regular expression.
- Record
CVE-2017-7443- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2017-7443
apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded newline characters, related to lack of blocking for the %0[ad] regular expression.
- Record
DEBIAN-CVE-2017-7443- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2017-7443
apt-cacher before 1.7.15 and apt-cacher-ng before 3.4 allow HTTP response splitting via encoded newline characters, related to lack of blocking for the %0[ad] regular expression.
- Record
UBUNTU-CVE-2017-7443- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-04
OSVUSN-8976-1 No score
apt-cacher vulnerability
It was discovered that Apt-Cacher did not properly handle encoded newline characters in requests. A remote attacker could possibly use this issue to perform HTTP response splitting attacks.
- Record
USN-8976-1- Updated
- 2026-11-04
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
apt-cacherDebian:12 |
before 1.7.15 | 1.7.15 |
apt-cacherDebian:13 |
before 1.7.15 | 1.7.15 |
apt-cacherDebian:14 |
before 1.7.15 | 1.7.15 |
apt-cacher-ngDebian:12 |
before 3-1 | 3-1 |
apt-cacher-ngDebian:13 |
before 3-1 | 3-1 |
apt-cacher-ngDebian:14 |
before 3-1 | 3-1 |
apt-cacherDebian:7 |
before 1.7.6+deb7u1, plus listed versions 1.7.6 |
1.7.6+deb7u1 |
apt-cacherUbuntu:Pro:16.04:LTS |
before 1.7.11ubuntu0.16.04.1~esm1, plus listed versions 1.7.11 |
1.7.11ubuntu0.16.04.1~esm1 |
apt-cacher-ngUbuntu:16.04:LTS |
All versions, plus listed versions 0.8.5-10.8.6-10.8.7-10.8.8-10.8.9-10.8.9-1ubuntu10.9.1-1ubuntu1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| affected, facts | 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-2017-7443 is a medium vulnerability (CVSS 6.1) in Apt-cacher-ng Project Apt-cacher-ng, published March 27, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.71%, the 53rd percentile. Fixed in apt-cacher 1.7.15.
References
bugs.debian.org/cgi-bin/bugreport.cgi?bug=858833
nvd.nist.gov/vuln/detail/CVE-2017-7443
github.com/advisories/GHSA-w6gh-25j9-8fm4
security-tracker.debian.org/tracker/CVE-2017-7443
ubuntu.com/security/CVE-2017-7443
cve.org/CVERecord?id=CVE-2017-7443