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poppler: fix CVE-2026-10118

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A flaw was found in Poppler's Splash backend. A remote attacker could
exploit this vulnerability by crafting a malicious PDF file that, when
rendered, triggers an integer overflow in the `tilingPatternFill`
function. This overflow leads to an undersized heap memory allocation,
allowing a subsequent out-of-bounds write. Successful exploitation could
result in arbitrary code execution, information disclosure, or denial of
service within the context of the application processing the PDF.

Backport patch to fix CVE-2026-10118.

Reference:
[https://nvd.nist.gov/vuln/detail/CVE-2026-10118]
[https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1715]

Upstream Patch:
[https://gitlab.freedesktop.org/poppler/poppler/-/commit/8352264766652b98336e92359a70b3161a9ab97a]

Signed-off-by: Abhishek Bachiphale <Abhishek.Bachiphale@windriver.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
This commit is contained in:
Abhishek Bachiphale
2026-08-24 12:58:44 +05:30
committed by Anuj Mittal
parent 3463973c5e
commit df411c8098
2 changed files with 47 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta-oe/recipes-support/poppler/poppler/CVE-2026-10118.patch
+46
View File
@@ -0,0 +1,46 @@
From 8352264766652b98336e92359a70b3161a9ab97a Mon Sep 17 00:00:00 2001
From: Marek Kasik <mkasik@redhat.com>
Date: Thu, 21 May 2026 17:51:51 +0200
Subject: [PATCH] SplashOutputDev: Fix integer overflow in tilingPatternFill
Use checkedMultiply() to check integer multiplication of surface size
and number of repetitions to avoid integer overflow and possible memory issues.
Fixes: #1715
CVE: CVE-2026-10118
Upstream-Status: Backport [https://gitlab.freedesktop.org/poppler/poppler/-/commit/8352264766652b98336e92359a70b3161a9ab97a]
Changes:
- Removed copyright from the upstream patch
Signed-off-by: Abhishek Bachiphale <Abhishek.Bachiphale@windriver.com>
---
poppler/SplashOutputDev.cc | 4 +---
1 file changed, 1 insertions(+), 3 deletions(-)
diff --git a/poppler/SplashOutputDev.cc b/poppler/SplashOutputDev.cc
index ff3ad0eff..f055486c3 100644
--- a/poppler/SplashOutputDev.cc
+++ b/poppler/SplashOutputDev.cc
@@ -4327,7 +4328,7 @@ bool SplashOutputDev::tilingPatternFill(GfxState *state, Gfx *gfxA, Catalog * /*
matc[2] = ctm[2];
matc[3] = ctm[3];
- if (surface_width == 0 || surface_height == 0 || repeatX * repeatY <= 4) {
+ if (surface_width == 0 || surface_height == 0 || repeatX * repeatY <= 4 || checkedMultiply(surface_width, repeatX, &result_width) || checkedMultiply(surface_height, repeatY, &result_height)) {
state->setCTM(savedCTM[0], savedCTM[1], savedCTM[2], savedCTM[3], savedCTM[4], savedCTM[5]);
return false;
}
@@ -4349,8 +4350,6 @@ bool SplashOutputDev::tilingPatternFill(GfxState *state, Gfx *gfxA, Catalog * /*
kx = matc[0];
ky = matc[3] - (matc[1] * matc[2]) / matc[0];
}
- result_width = surface_width * repeatX;
- result_height = surface_height * repeatY;
kx = result_width / (fabs(kx) + 1);
ky = result_height / (fabs(ky) + 1);
state->concatCTM(kx, 0, 0, ky, 0, 0);
--
GitLab
meta-oe/recipes-support/poppler/poppler_25.12.0.bb
+1
View File
@@ -8,6 +8,7 @@ SRC_URI = "http://poppler.freedesktop.org/${BP}.tar.xz \
file://basename-include.patch \
file://0001-cmake-Do-not-use-isystem.patch \
file://0001-workaround-build-racing.patch \
file://CVE-2026-10118.patch \
"
SRC_URI[sha256sum] = "c18b40eb36b1a0c5b86e29ca054bf0770304583da4f2cdd42fe86eca6a20de48"