update-manager crashed with SIGSEGV in debListParser::LoadReleaseInfo()

[lostprophet]

update-manager crashed when clicking on a red warning sign in the top that told me, that some sources could not be fetched

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: update-manager 1:0.185
ProcVersionSignature: Ubuntu 3.8.0-13.23-generic 3.8.3
Uname: Linux 3.8.0-13-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu2
Architecture: amd64
Date: Thu Mar 21 18:59:47 2013
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'launch-time' b'1363888950'
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-height' b'337'
 b'com.ubuntu.update-manager' b'window-width' b'484'
InterpreterPath: /usr/bin/python3.3
MarkForUpload: True
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/update-manager --no-update
SegvAnalysis:
 Segfault happened at: 0x7f0378fe38c2 <_ZN13debListParser15LoadReleaseInfoERN8pkgCache15PkgFileIteratorER6FileFdSs+114>: mov %r12d,0xc(%rax)
 PC (0x7f0378fe38c2) ok
 source "%r12d" ok
 destination "0xc(%rax)" (0x7f03753819ec) in non-writable VMA region: 0x7f0374022000-0x7f0378000000 ---p None
 Stack memory exhausted (SP below stack segment)
SegvReason: writing VMA None
Signal: 11
SourcePackage: update-manager
StacktraceTop:
 debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator&, FileFd&, std::string) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 debPackagesIndex::Merge(pkgCacheGenerator&, OpProgress*) const () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 ?? () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
Title: update-manager crashed with SIGSEGV in debListParser::LoadReleaseInfo()
UpgradeStatus: Upgraded to raring on 2013-03-11 (9 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #957231, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.