CVE-2017-9788

critical
Published 2017-07-13 ยท Modified 2026-05-13
CVSS v3
9.1
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
9.1

Description

In Apache httpd before 2.2.34 and 2.4.x before 2.4.27, the value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments by mod_auth_digest. Providing an initial key with no '=' assignment could reflect the stale value of uninitialized pool memory used by the prior request, leading to leakage of potentially confidential information, and a segfault in other cases resulting in denial of service.

Predictions

Exploit likelihood
94%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed2.4.27-1
debian debianbullseyefixed2.4.27-1
debian debianforkyfixed2.4.27-1
debian debiansidfixed2.4.27-1
debian debiantrixiefixed2.4.27-1
arch archfixed2.4.27-1
suse slesaffected
debian debian8.0affected
debian debian9.0affected
macos macosaffected10.13.1
redhat rhel6.0affected
redhat rhel7.0affected

Application impact

VendorProductVersionsFixed
apache apachehttp_server{"endIncluding":"2.2.33"}
netapponcommand_unified_manager-
netappstorage_automation_store-
redhat redhatjboss_core_services1.0
redhat redhatjboss_enterprise_application_platform6.0.0
redhat redhatjboss_enterprise_application_platform6.4.0
redhat redhatjboss_enterprise_web_server2.0.0
oracle oraclesecure_global_desktop5.3
apache apachehttp_server{"startIncluding":"2.4.0","endIncluding":"2.4.26"}

References

CWEs

CWE-20 CWE-200

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.