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CVE-2017-9778

21
FAUCET Score

CVE-2017-9778 describes a vulnerability in GNU Debugger (GDB) versions 8.0 and earlier, where it fails to properly handle negative length fields in DWARF sections. This flaw can lead to a denial-of-service condition by causing GDB to repeatedly allocate memory when analyzing a specially crafted ELF binary or core file. The vulnerability has a CVSS v3.0 score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring user interaction, and resulting in high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.0CPE matchmatch criteria
cpe:2.3:a:gnu:gdb:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.11%
Probability of exploitation in next 30 days
EPSS Percentile
62.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0111 is in the 73rd percentile among its peer group of 5,758 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: gdb
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: gdb
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: gdb

Vendor Advisories (1)

redhatCVE-2017-9778Low

gdb: Malformed section in an ELF binary or a core file can cause memory exhaustion

Jun 15, 2017

References

sourceware.org / bugzilla/show_bug.cgi
Issue TrackingThird Party Advisory
securityfocus.com / bid/99244
Third Party AdvisoryVDB Entry