CVE-2015-1803

high
Published 2015-03-20 ยท Modified 2026-05-06
CVSS v3
โ€”
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
8.5

Description

The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly handle character bitmaps it cannot read, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) and possibly execute arbitrary code via a crafted BDF font file.

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

ubuntu Ubuntu Affected 4 releases
VersionStatusFixed in
14.10 Affected โ€”
14.04 Affected โ€”
12.04 Affected โ€”
10.04 Affected โ€”
debian Debian Mixed 6 releases
VersionStatusFixed in
trixie Fixed 1:1.5.1-1
sid Fixed 1:1.5.1-1
forky Fixed 1:1.5.1-1
bullseye Fixed 1:1.5.1-1
bookworm Fixed 1:1.5.1-1
7.0 Affected โ€”

Application impact

VendorProductVersionsFixed
xlibxfont{"endIncluding":"1.4.8"}
xlibxfont1.5.0

References

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

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