CVE-2019-6247: An issue was discovered in Anti-Grain Geometry (AGG) 2.4 as used in SVG++ (aka svgpp) 1.2.3

This month

HIGH 8.8DOWNGRADEDOWNGRADE

CVE-2019-6247 is a high-severity flaw (CVSS 8.8) affecting agg, svgpp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Anti-Grain Geometry (AGG) 2.4 as used in SVG++ (aka svgpp) 1.2.3. A heap-based buffer overflow bug in svgpp_agg_render may lead to code execution. In the render_scanlines_aa_solid function, the blend_hline function is called repeatedly multiple times. blend_hline is equivalent to a loop containing write operations. Each call writes a piece of heap data, and multiple calls overwrite the data in the heap.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	2.5% (top 15%)
CISA exploited list	No
Weakness	CWE-787
Published	2019-01-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: antigrain · svgpp

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-01-13 00:29 UTCPublished CVE record published
2026-06-17 02:38 UTCUpdated Record last modified

antigrain agg DOWNGRADE

Affected: 2.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.4

1. Check installed version

apt-cache policy agg || rpm -q agg || agg --version

2. No fixed release: DOWNGRADE to a release before 2.4 (Debian / Ubuntu)

apt-cache madison agg sudo apt install agg=<VERSION_BEFORE_2.4> sudo apt-mark hold agg

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list agg sudo dnf downgrade agg-<VERSION_BEFORE_2.4> sudo dnf versionlock add agg

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

svgpp svgpp DOWNGRADE

Affected: 1.2.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.3

1. Check installed version

apt-cache policy svgpp || rpm -q svgpp || svgpp --version

2. No fixed release: DOWNGRADE to a release before 1.2.3 (Debian / Ubuntu)

apt-cache madison svgpp sudo apt install svgpp=<VERSION_BEFORE_1.2.3> sudo apt-mark hold svgpp

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list svgpp sudo dnf downgrade svgpp-<VERSION_BEFORE_1.2.3> sudo dnf versionlock add svgpp

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-6247?

agg: downgrade or apply the listed mitigation; svgpp: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-6247 being exploited?

CVE-2019-6247 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-6247 affect?

CVE-2019-6247 affects agg, svgpp. Severity is high (CVSS 8.8). An issue was discovered in Anti-Grain Geometry (AGG) 2.4 as used in SVG++ (aka svgpp) 1.2.3. A heap-based buffer overflow bug in svgpp_agg_render may lead to code execution. In the render_scanlines_aa_solid function, the blend_hline functio

How urgent is CVE-2019-6247?

Priority 57/100. High severity; Public exploit reference

Related CVEs

CVE-2019-6245 HIGH 8.8 DOWNGRADE DOWNGRADE An issue was discovered in Anti-Grain Geometry (AGG) 2.4 as used in SVG++ (aka svgpp) 1.2.3

References

← Back to latest CVEs