CVE-2017-8834

Exp

The cr_tknzr_parse_comment function in cr-tknzr.c in libcroco 0.6.12 allows remote attackers to cause a denial of service (memory allocation error) via a crafted CSS file.

Published: 2017-06-12 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-8834 is rated High Exploit Risk (68.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.08%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2017-8834

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2017-8834

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-01 0.83% 1.08% +0.25%
2 2025-11-21 1.38% 0.83% -0.55%
3 2025-11-18 — 1.38% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-8834

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2017-8834

OS Trackers for CVE-2017-8834

vendor priority summary link
alpine — CVE-2017-8834: 1 source package rows (libcroco); 2 state rows across 2 repos (3.10-main, 3.11-main); fixed 2, open 0. https://security.alpinelinux.org/vuln/CVE-2017-8834
redhat low — https://access.redhat.com/security/cve/CVE-2017-8834
suse low CVE-2017-8834 severity low: SUSE including 35 source package names (libcroco, libcroco-0.6.11-12.3.1, …), 91 product×package rows across 49 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-Basic-On-Demand, … (49 product lines)): Fixed 87, Known Not Affected 4. https://www.suse.com/security/cve/CVE-2017-8834/
ubuntu low CVE-2017-8834 low priority: Ubuntu including 1 source packages (libcroco), 20 status rows across 20 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, trusty, upstream, xenial, yakkety, zesty): DNE 8, ignored 8, released 4. https://ubuntu.com/security/CVE-2017-8834

Affected software / configurations for CVE-2017-8834

Vendor Product Version Raw CPE
gnome libcroco 0.6.12 cpe:2.3:a:gnome:libcroco:0.6.12:*:*:*:*:*:*:*
opensuse leap 42.3 cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*

References for CVE-2017-8834

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00043.html Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/08/13/3 Exploit Mailing List Third Party Advisory
https://bugzilla.gnome.org/show_bug.cgi?id=782647 Issue Tracking Third Party Advisory
https://www.exploit-db.com/exploits/42147/ Exploit Third Party Advisory VDB Entry
cvelogic Threat Intelligence