CVE-2017-5029

The xsltAddTextString function in transform.c in libxslt 1.1.29, as used in Blink in Google Chrome prior to 57.0.2987.98 for Mac, Windows, and Linux and 57.0.2987.108 for Android, lacked a check for integer overflow during a size calculation, which allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page.

Published: 2017-04-24 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2017-5029 is rated Moderate Risk (63/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.23%). Mandatory action: Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2017-5029

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 2026-06-03 1.27% 1.23% -0.03%
2 2026-05-22 1.23% 1.27% +0.03%
3 2026-04-07 1.23%

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-5029

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
8.6 6.4 [email protected]

Weakness enumeration for CVE-2017-5029

GitHub Security Advisory for CVE-2017-5029

GHSA-pf6m-fxpq-fg8v · Severity: high · Ecosystem: rubygems — Nokogiri implementation of libxslt lacks integer overflow checks

OS Trackers for CVE-2017-5029

vendor priority summary link
alpine CVE-2017-5029: 1 source package rows (libxslt); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. https://security.alpinelinux.org/vuln/CVE-2017-5029
debian not yet assigned CVE-2017-5029 not yet assigned priority: Debian including 1 source packages (libxslt), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-5029
gentoo normal CVE-2017-5029: 1 GLSA(s) (201804-01), 1 atom(s) (dev-libs/libxslt); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2017-5029
redhat high https://access.redhat.com/security/cve/CVE-2017-5029
suse low CVE-2017-5029 severity low: SUSE including 299 source package names (4.0.0:libxslt1-1.1.28-16.1, amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, …), 429 product×package rows across 82 product lines (Container caasp/v4/nginx-ingress-controller, Container caasp/v4/velum, … (82 product lines)): Known Affected 231, Fixed 160, Known Not Affected 38. https://www.suse.com/security/cve/CVE-2017-5029/
ubuntu medium CVE-2017-5029 medium priority: Ubuntu including 3 source packages (chromium-browser, libxslt, oxide-qt), 18 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): released 15, DNE 1, ignored 1, needed 1. https://ubuntu.com/security/CVE-2017-5029

Affected software / configurations for CVE-2017-5029

Vendor Product Version Raw CPE
google chrome <= 57.0.2987.75 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
google chrome <= 57.0.2987.100 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
xmlsoft libxslt 1.1.29 cpe:2.3:a:xmlsoft:libxslt:1.1.29:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*

References for CVE-2017-5029

cvelogic Threat Intelligence