CVE-2015-3281

medium
Published 2015-07-06 ยท Modified 2026-05-06
CVSS v3
โ€”
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
5.0

Description

The buffer_slow_realign function in HAProxy 1.5.x before 1.5.14 and 1.6-dev does not properly realign a buffer that is used for pending outgoing data, which allows remote attackers to obtain sensitive information (uninitialized memory contents of previous requests) via a crafted request.

Predictions

Exploit likelihood
20%
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

redhat Red Hat Affected 1 release
VersionStatusFixed in
7.0 Affected โ€”
suse SUSE Affected 1 release
VersionStatusFixed in
13.2 Affected โ€”
ubuntu Ubuntu Affected 2 releases
VersionStatusFixed in
15.04 Affected โ€”
14.10 Affected โ€”
debian Debian Mixed 6 releases
VersionStatusFixed in
trixie Fixed 1.5.14-1
sid Fixed 1.5.14-1
forky Fixed 1.5.14-1
bullseye Fixed 1.5.14-1
bookworm Fixed 1.5.14-1
8.0 Affected โ€”

Application impact

VendorProductVersionsFixed
haproxyhaproxy1.5
haproxyhaproxy1.5.0
haproxyhaproxy1.5.1
haproxyhaproxy1.5.2
haproxyhaproxy1.5.3
haproxyhaproxy1.5.4
haproxyhaproxy1.5.5
haproxyhaproxy1.5.6
haproxyhaproxy1.5.7
haproxyhaproxy1.5.8
haproxyhaproxy1.5.9
haproxyhaproxy1.5.10
haproxyhaproxy1.5.11
haproxyhaproxy1.5.12
haproxyhaproxy1.5.13
haproxyhaproxy1.6

References

CWEs

CWE-119

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

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