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fix(libcpanel-json-xs-perl): CVE-2025-40929 #4

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Merged
Zeno-sole merged 1 commit into from
Apr 30, 2026
Merged

fix(libcpanel-json-xs-perl): CVE-2025-40929 #4

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6 changes: 6 additions & 0 deletions debian/changelog
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Original file line number Diff line number Diff line change
@@ -1,3 +1,9 @@
libcpanel-json-xs-perl (4.39-1deepin1) unstable; urgency=medium

* Fix integer buffer overflow in json_atof_scan1 (CVE-2025-40929)

-- deepin-ci-robot <[email protected]> Mon, 27 Apr 2026 19:07:41 +0800

libcpanel-json-xs-perl (4.39-1) unstable; urgency=medium

* Team upload.
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33 changes: 33 additions & 0 deletions debian/patches/cve_2025_40929.patch
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@@ -0,0 +1,33 @@
Index: github-libcpanel-json-xs-perl-CVE-2025-40929/XS.xs
===================================================================
--- github-libcpanel-json-xs-perl-CVE-2025-40929.orig/XS.xs
+++ github-libcpanel-json-xs-perl-CVE-2025-40929/XS.xs
@@ -710,16 +710,16 @@ json_atof_scan1 (const char *s, NV *accu
/* if we recurse too deep, skip all remaining digits */
/* to avoid a stack overflow attack */
if (UNLIKELY(--maxdepth <= 0))
- while (((U8)*s - '0') < 10)
+ while (*s >= '0' && *s <= '9')
++s;

for (;;)
{
- U8 dig = (U8)*s - '0';
+ U8 dig = (U8)(*s - '0');

if (UNLIKELY(dig >= 10))
{
- if (dig == (U8)((U8)'.' - (U8)'0'))
+ if (dig == (U8)('.' - '0'))
{
++s;
json_atof_scan1 (s, accum, expo, 1, maxdepth);
@@ -739,7 +739,7 @@ json_atof_scan1 (const char *s, NV *accu
else if (*s == '+')
++s;

- while ((dig = (U8)*s - '0') < 10)
+ while (*s >= '0' && *s <= '9')
exp2 = exp2 * 10 + *s++ - '0';

*expo += neg ? -exp2 : exp2;
1 change: 1 addition & 0 deletions debian/patches/series
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@@ -0,0 +1 @@
cve_2025_40929.patch
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