Hi Niko,

On Tue, Jul 14, 2026 at 11:11:19AM +0300, Niko Tyni wrote:
> Control: unarchive 1138905
> Control: retitle 1138905 perl: CVE-2026-57432: integer overflow in 
> S_measure_struct
> Control: forcemerge 1138905 -1
> 
> On Tue, Jul 14, 2026 at 08:51:35AM +0200, Salvatore Bonaccorso wrote:
> > Source: perl
> > Version: 5.40.1-8
> > Severity: important
> > Tags: security upstream
> > X-Debbugs-Cc: [email protected], Debian Security Team 
> > <[email protected]>
> > 
> > Hi,
> > 
> > The following vulnerability was published for perl.
> > 
> > CVE-2026-57432[0]:
> > | Perl versions through 5.43.10 have an integer overflow in
> > | S_measure_struct leading to an out-of-bounds heap read in pack and
> > | unpack.  S_measure_struct adds each item's size times its repeat
> > | count to a running total with no overflow check, so a large repeat
> > | count in a pack or unpack template wraps the signed SSize_t total
> > | negative. The @, X, and x position codes then guard their moves with
> > | a signed length comparison that passes when the length is negative,
> > | advancing the buffer pointer out of bounds.  A template derived from
> > | untrusted input can read heap memory past the buffer and return it
> > | to the caller.
> > 
> > 
> > If you fix the vulnerability please also make sure to include the
> > CVE (Common Vulnerabilities & Exposures) id in your changelog entry.
> > 
> > For further information see:
> > 
> > [0] https://security-tracker.debian.org/tracker/CVE-2026-57432
> >     https://www.cve.org/CVERecord?id=CVE-2026-57432
> > [1] https://lists.security.metacpan.org/cve-announce/msg/41780102/
> > 
> > Please adjust the affected versions in the BTS as needed.
> 
> This is #1138905, already fixed in testing/unstable (but not in stable
> so far.)
> 
> So merging.

Samewise here, sorry for that.

Regards,
Salvatore

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